./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:49:52,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:49:52,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:49:52,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:49:52,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:49:52,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:49:52,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:49:52,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:49:52,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:49:52,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:49:52,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:49:52,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:49:52,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:49:52,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:49:52,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:49:52,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:49:52,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:49:52,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:49:52,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:49:52,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:49:52,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:49:52,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:49:52,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:49:52,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:49:52,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:49:52,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:49:52,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:49:52,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:49:52,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:49:52,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:49:52,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:49:52,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:49:52,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:49:52,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:49:52,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:49:52,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:49:52,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:49:52,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:49:52,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:49:52,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:49:52,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:49:52,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:49:52,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:49:52,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:49:52,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:49:52,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:49:52,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:49:52,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:49:52,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:49:52,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:49:52,713 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:49:52,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:49:52,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:49:52,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:49:52,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:49:52,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:49:52,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:49:52,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:49:52,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:49:52,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:49:52,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:49:52,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:49:52,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:49:52,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:49:52,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:49:52,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:49:52,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:49:52,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:49:52,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:49:52,717 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:49:52,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:49:52,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:49:52,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2021-12-28 04:49:52,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:49:52,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:49:52,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:49:52,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:49:52,975 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:49:52,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-12-28 04:49:53,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c577bf34/d6f657009a374adeba247081f653ad75/FLAGfd205a18e [2021-12-28 04:49:53,665 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:49:53,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-12-28 04:49:53,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c577bf34/d6f657009a374adeba247081f653ad75/FLAGfd205a18e [2021-12-28 04:49:54,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c577bf34/d6f657009a374adeba247081f653ad75 [2021-12-28 04:49:54,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:49:54,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:49:54,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:49:54,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:49:54,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:49:54,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:49:54" (1/1) ... [2021-12-28 04:49:54,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13737ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:54, skipping insertion in model container [2021-12-28 04:49:54,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:49:54" (1/1) ... [2021-12-28 04:49:54,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:49:54,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:49:55,703 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-12-28 04:49:55,706 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-12-28 04:49:55,706 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-12-28 04:49:55,706 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-12-28 04:49:55,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:49:55,764 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:49:56,028 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2021-12-28 04:49:56,028 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2021-12-28 04:49:56,028 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2021-12-28 04:49:56,029 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2021-12-28 04:49:56,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:49:56,185 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:49:56,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56 WrapperNode [2021-12-28 04:49:56,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:49:56,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:49:56,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:49:56,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:49:56,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,419 INFO L137 Inliner]: procedures = 459, calls = 1763, calls flagged for inlining = 217, calls inlined = 199, statements flattened = 4288 [2021-12-28 04:49:56,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:49:56,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:49:56,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:49:56,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:49:56,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:49:56,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:49:56,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:49:56,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:49:56,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (1/1) ... [2021-12-28 04:49:56,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:49:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:49:56,692 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) [2021-12-28 04:49:56,699 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 [2021-12-28 04:49:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2021-12-28 04:49:56,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2021-12-28 04:49:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:49:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:49:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2021-12-28 04:49:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2021-12-28 04:49:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 04:49:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 04:49:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2021-12-28 04:49:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2021-12-28 04:49:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-12-28 04:49:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-12-28 04:49:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:49:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:49:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 04:49:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 04:49:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 04:49:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 04:49:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:49:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:49:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2021-12-28 04:49:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2021-12-28 04:49:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2021-12-28 04:49:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2021-12-28 04:49:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-12-28 04:49:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-12-28 04:49:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2021-12-28 04:49:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2021-12-28 04:49:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:49:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:49:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2021-12-28 04:49:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2021-12-28 04:49:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 04:49:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 04:49:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 04:49:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 04:49:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-28 04:49:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-28 04:49:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 04:49:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 04:49:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:49:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:49:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:49:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:49:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:49:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:49:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:49:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 04:49:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 04:49:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:49:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:49:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:49:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:49:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2021-12-28 04:49:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2021-12-28 04:49:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:49:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:49:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:49:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:49:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 04:49:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 04:49:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:49:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:49:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:49:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 04:49:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 04:49:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 04:49:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 04:49:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-28 04:49:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-28 04:49:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-28 04:49:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-28 04:49:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:49:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:49:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:49:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:49:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 04:49:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 04:49:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2021-12-28 04:49:56,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2021-12-28 04:49:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:49:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-28 04:49:56,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-28 04:49:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-28 04:49:56,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-28 04:49:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-28 04:49:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-28 04:49:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:49:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 04:49:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 04:49:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:49:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2021-12-28 04:49:56,734 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2021-12-28 04:49:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2021-12-28 04:49:56,734 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2021-12-28 04:49:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:49:56,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:49:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:49:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:49:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:49:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:49:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:49:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:49:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-28 04:49:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-28 04:49:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-28 04:49:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-28 04:49:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2021-12-28 04:49:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2021-12-28 04:49:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2021-12-28 04:49:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2021-12-28 04:49:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:49:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:49:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 04:49:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 04:49:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-28 04:49:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-28 04:49:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-28 04:49:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-28 04:49:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:49:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:49:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2021-12-28 04:49:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2021-12-28 04:49:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2021-12-28 04:49:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2021-12-28 04:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2021-12-28 04:49:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2021-12-28 04:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:49:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-28 04:49:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-28 04:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 04:49:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 04:49:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-28 04:49:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-28 04:49:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-28 04:49:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-28 04:49:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 04:49:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 04:49:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:49:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:49:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-28 04:49:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-28 04:49:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-28 04:49:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-28 04:49:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:49:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:49:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:49:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:49:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-28 04:49:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-28 04:49:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-28 04:49:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-28 04:49:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2021-12-28 04:49:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2021-12-28 04:49:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-28 04:49:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-28 04:49:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:49:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2021-12-28 04:49:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2021-12-28 04:49:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:49:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:49:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 04:49:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 04:49:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-28 04:49:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-28 04:49:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 04:49:56,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 04:49:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 04:49:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 04:49:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-28 04:49:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-28 04:49:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-28 04:49:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-28 04:49:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 04:49:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 04:49:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:49:56,751 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:49:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2021-12-28 04:49:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2021-12-28 04:49:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-12-28 04:49:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-12-28 04:49:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2021-12-28 04:49:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2021-12-28 04:49:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:49:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:49:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:49:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:49:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:49:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-28 04:49:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-28 04:49:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2021-12-28 04:49:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2021-12-28 04:49:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-28 04:49:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-28 04:49:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2021-12-28 04:49:56,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2021-12-28 04:49:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 04:49:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 04:49:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-28 04:49:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-28 04:49:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2021-12-28 04:49:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2021-12-28 04:49:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2021-12-28 04:49:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2021-12-28 04:49:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2021-12-28 04:49:56,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2021-12-28 04:49:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:49:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:49:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-28 04:49:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-28 04:49:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:49:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2021-12-28 04:49:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2021-12-28 04:49:56,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 04:49:56,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 04:49:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2021-12-28 04:49:56,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2021-12-28 04:49:56,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2021-12-28 04:49:56,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2021-12-28 04:49:57,349 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:49:57,351 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:49:57,485 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:49:58,946 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-28 04:49:59,027 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:49:59,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:49:59,040 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:49:59,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:49:59 BoogieIcfgContainer [2021-12-28 04:49:59,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:49:59,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:49:59,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:49:59,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:49:59,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:49:54" (1/3) ... [2021-12-28 04:49:59,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fd4784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:49:59, skipping insertion in model container [2021-12-28 04:49:59,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:56" (2/3) ... [2021-12-28 04:49:59,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fd4784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:49:59, skipping insertion in model container [2021-12-28 04:49:59,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:49:59" (3/3) ... [2021-12-28 04:49:59,047 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2021-12-28 04:49:59,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:49:59,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-28 04:49:59,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:49:59,088 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 [2021-12-28 04:49:59,088 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-28 04:49:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 1770 states, 1156 states have (on average 1.2301038062283738) internal successors, (1422), 1188 states have internal predecessors, (1422), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-28 04:49:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-28 04:49:59,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:49:59,128 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:49:59,128 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)] === [2021-12-28 04:49:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:49:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash -123610279, now seen corresponding path program 1 times [2021-12-28 04:49:59,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:49:59,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341939862] [2021-12-28 04:49:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:49:59,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:49:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:49:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:49:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:49:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:49:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:49:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:49:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:49:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:49:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:49:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:49:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:49:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-28 04:49:59,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:49:59,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341939862] [2021-12-28 04:49:59,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341939862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:49:59,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:49:59,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:49:59,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701527075] [2021-12-28 04:49:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:49:59,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:49:59,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:49:59,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:49:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:49:59,739 INFO L87 Difference]: Start difference. First operand has 1770 states, 1156 states have (on average 1.2301038062283738) internal successors, (1422), 1188 states have internal predecessors, (1422), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 04:50:03,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:03,209 INFO L93 Difference]: Finished difference Result 5340 states and 7568 transitions. [2021-12-28 04:50:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2021-12-28 04:50:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:03,245 INFO L225 Difference]: With dead ends: 5340 [2021-12-28 04:50:03,246 INFO L226 Difference]: Without dead ends: 3579 [2021-12-28 04:50:03,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:03,267 INFO L933 BasicCegarLoop]: 2550 mSDtfsCounter, 3062 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 1566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3548 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1566 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:03,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3548 Valid, 4540 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1566 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-28 04:50:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2021-12-28 04:50:03,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3431. [2021-12-28 04:50:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3431 states, 2253 states have (on average 1.2219263204616067) internal successors, (2753), 2315 states have internal predecessors, (2753), 972 states have call successors, (972), 204 states have call predecessors, (972), 203 states have return successors, (969), 961 states have call predecessors, (969), 969 states have call successors, (969) [2021-12-28 04:50:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 4694 transitions. [2021-12-28 04:50:03,476 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 4694 transitions. Word has length 101 [2021-12-28 04:50:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:03,477 INFO L470 AbstractCegarLoop]: Abstraction has 3431 states and 4694 transitions. [2021-12-28 04:50:03,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 04:50:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 4694 transitions. [2021-12-28 04:50:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-28 04:50:03,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:03,486 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:03,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:50:03,486 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)] === [2021-12-28 04:50:03,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:03,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1920541611, now seen corresponding path program 1 times [2021-12-28 04:50:03,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:03,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088544488] [2021-12-28 04:50:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:03,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 04:50:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:03,733 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-28 04:50:03,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:03,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088544488] [2021-12-28 04:50:03,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088544488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:03,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:03,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:03,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082376120] [2021-12-28 04:50:03,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:03,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:03,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:03,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:03,740 INFO L87 Difference]: Start difference. First operand 3431 states and 4694 transitions. 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 04:50:06,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:06,855 INFO L93 Difference]: Finished difference Result 9935 states and 13625 transitions. [2021-12-28 04:50:06,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:06,856 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2021-12-28 04:50:06,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:06,890 INFO L225 Difference]: With dead ends: 9935 [2021-12-28 04:50:06,891 INFO L226 Difference]: Without dead ends: 6523 [2021-12-28 04:50:06,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:06,905 INFO L933 BasicCegarLoop]: 2474 mSDtfsCounter, 2672 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 1546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 4441 SdHoareTripleChecker+Invalid, 3763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1546 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:06,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3083 Valid, 4441 Invalid, 3763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1546 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-28 04:50:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6523 states. [2021-12-28 04:50:07,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6523 to 6312. [2021-12-28 04:50:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6312 states, 4119 states have (on average 1.2182568584607913) internal successors, (5018), 4247 states have internal predecessors, (5018), 1789 states have call successors, (1789), 394 states have call predecessors, (1789), 401 states have return successors, (1816), 1772 states have call predecessors, (1816), 1786 states have call successors, (1816) [2021-12-28 04:50:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6312 states to 6312 states and 8623 transitions. [2021-12-28 04:50:07,176 INFO L78 Accepts]: Start accepts. Automaton has 6312 states and 8623 transitions. Word has length 114 [2021-12-28 04:50:07,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:07,177 INFO L470 AbstractCegarLoop]: Abstraction has 6312 states and 8623 transitions. [2021-12-28 04:50:07,177 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 04:50:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6312 states and 8623 transitions. [2021-12-28 04:50:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-28 04:50:07,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:07,183 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:07,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:50:07,184 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)] === [2021-12-28 04:50:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -776510205, now seen corresponding path program 1 times [2021-12-28 04:50:07,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:07,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468519211] [2021-12-28 04:50:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:07,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:50:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-28 04:50:07,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:07,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468519211] [2021-12-28 04:50:07,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468519211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:07,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:07,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:50:07,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870186908] [2021-12-28 04:50:07,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:07,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:50:07,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:07,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:50:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:50:07,406 INFO L87 Difference]: Start difference. First operand 6312 states and 8623 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 04:50:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:13,254 INFO L93 Difference]: Finished difference Result 14937 states and 20402 transitions. [2021-12-28 04:50:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 04:50:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 115 [2021-12-28 04:50:13,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:13,291 INFO L225 Difference]: With dead ends: 14937 [2021-12-28 04:50:13,292 INFO L226 Difference]: Without dead ends: 8644 [2021-12-28 04:50:13,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:50:13,314 INFO L933 BasicCegarLoop]: 3113 mSDtfsCounter, 6798 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 5251 mSolverCounterSat, 3856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7633 SdHoareTripleChecker+Valid, 5765 SdHoareTripleChecker+Invalid, 9107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3856 IncrementalHoareTripleChecker+Valid, 5251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:13,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7633 Valid, 5765 Invalid, 9107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3856 Valid, 5251 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-28 04:50:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2021-12-28 04:50:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8192. [2021-12-28 04:50:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8192 states, 5320 states have (on average 1.212218045112782) internal successors, (6449), 5495 states have internal predecessors, (6449), 2299 states have call successors, (2299), 566 states have call predecessors, (2299), 570 states have return successors, (2308), 2271 states have call predecessors, (2308), 2296 states have call successors, (2308) [2021-12-28 04:50:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8192 states to 8192 states and 11056 transitions. [2021-12-28 04:50:13,607 INFO L78 Accepts]: Start accepts. Automaton has 8192 states and 11056 transitions. Word has length 115 [2021-12-28 04:50:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:13,609 INFO L470 AbstractCegarLoop]: Abstraction has 8192 states and 11056 transitions. [2021-12-28 04:50:13,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 04:50:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8192 states and 11056 transitions. [2021-12-28 04:50:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 04:50:13,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:13,611 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-12-28 04:50:13,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:50:13,612 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)] === [2021-12-28 04:50:13,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1694412680, now seen corresponding path program 1 times [2021-12-28 04:50:13,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963258458] [2021-12-28 04:50:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:13,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:50:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 04:50:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 04:50:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:13,776 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-12-28 04:50:13,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:13,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963258458] [2021-12-28 04:50:13,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963258458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:13,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:13,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:13,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722250938] [2021-12-28 04:50:13,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:13,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:13,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:13,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:13,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:13,779 INFO L87 Difference]: Start difference. First operand 8192 states and 11056 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 04:50:16,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:16,729 INFO L93 Difference]: Finished difference Result 23397 states and 31755 transitions. [2021-12-28 04:50:16,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:16,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2021-12-28 04:50:16,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:16,800 INFO L225 Difference]: With dead ends: 23397 [2021-12-28 04:50:16,800 INFO L226 Difference]: Without dead ends: 15224 [2021-12-28 04:50:16,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:16,830 INFO L933 BasicCegarLoop]: 2548 mSDtfsCounter, 2901 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 1549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 3664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1549 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:16,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3342 Valid, 4574 Invalid, 3664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1549 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-28 04:50:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15224 states. [2021-12-28 04:50:17,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15224 to 14412. [2021-12-28 04:50:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14412 states, 9374 states have (on average 1.2152762961382548) internal successors, (11392), 9693 states have internal predecessors, (11392), 4011 states have call successors, (4011), 1023 states have call predecessors, (4011), 1024 states have return successors, (4052), 3937 states have call predecessors, (4052), 4008 states have call successors, (4052) [2021-12-28 04:50:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14412 states to 14412 states and 19455 transitions. [2021-12-28 04:50:17,387 INFO L78 Accepts]: Start accepts. Automaton has 14412 states and 19455 transitions. Word has length 119 [2021-12-28 04:50:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:17,388 INFO L470 AbstractCegarLoop]: Abstraction has 14412 states and 19455 transitions. [2021-12-28 04:50:17,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 04:50:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 14412 states and 19455 transitions. [2021-12-28 04:50:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 04:50:17,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:17,390 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2021-12-28 04:50:17,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:50:17,390 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)] === [2021-12-28 04:50:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1423363548, now seen corresponding path program 1 times [2021-12-28 04:50:17,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:17,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993714796] [2021-12-28 04:50:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:17,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 04:50:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 04:50:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:50:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 04:50:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-12-28 04:50:17,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:17,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993714796] [2021-12-28 04:50:17,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993714796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:17,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:17,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:17,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431209673] [2021-12-28 04:50:17,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:17,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:17,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:17,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:17,576 INFO L87 Difference]: Start difference. First operand 14412 states and 19455 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-28 04:50:20,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:20,648 INFO L93 Difference]: Finished difference Result 40984 states and 55348 transitions. [2021-12-28 04:50:20,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:20,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2021-12-28 04:50:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:20,756 INFO L225 Difference]: With dead ends: 40984 [2021-12-28 04:50:20,756 INFO L226 Difference]: Without dead ends: 26591 [2021-12-28 04:50:20,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:20,815 INFO L933 BasicCegarLoop]: 2908 mSDtfsCounter, 2862 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 1486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 3703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1486 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:20,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3305 Valid, 5125 Invalid, 3703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1486 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-28 04:50:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26591 states. [2021-12-28 04:50:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26591 to 25209. [2021-12-28 04:50:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25209 states, 16524 states have (on average 1.208242556281772) internal successors, (19965), 17039 states have internal predecessors, (19965), 6842 states have call successors, (6842), 1847 states have call predecessors, (6842), 1840 states have return successors, (6920), 6678 states have call predecessors, (6920), 6839 states have call successors, (6920) [2021-12-28 04:50:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25209 states to 25209 states and 33727 transitions. [2021-12-28 04:50:21,686 INFO L78 Accepts]: Start accepts. Automaton has 25209 states and 33727 transitions. Word has length 121 [2021-12-28 04:50:21,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:21,687 INFO L470 AbstractCegarLoop]: Abstraction has 25209 states and 33727 transitions. [2021-12-28 04:50:21,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-28 04:50:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 25209 states and 33727 transitions. [2021-12-28 04:50:21,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-28 04:50:21,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:21,689 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-12-28 04:50:21,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:50:21,689 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)] === [2021-12-28 04:50:21,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:21,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1717066202, now seen corresponding path program 1 times [2021-12-28 04:50:21,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:21,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655370953] [2021-12-28 04:50:21,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:21,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 04:50:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:50:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:50:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:50:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:50:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-28 04:50:21,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:21,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655370953] [2021-12-28 04:50:21,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655370953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:21,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:21,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:50:21,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996423449] [2021-12-28 04:50:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:21,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:50:21,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:50:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:50:21,857 INFO L87 Difference]: Start difference. First operand 25209 states and 33727 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-28 04:50:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:25,617 INFO L93 Difference]: Finished difference Result 77160 states and 103867 transitions. [2021-12-28 04:50:25,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:50:25,618 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 153 [2021-12-28 04:50:25,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:25,850 INFO L225 Difference]: With dead ends: 77160 [2021-12-28 04:50:25,850 INFO L226 Difference]: Without dead ends: 52016 [2021-12-28 04:50:25,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:50:25,944 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 3036 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 1588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 3848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1588 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:25,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3517 Valid, 4666 Invalid, 3848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1588 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-28 04:50:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52016 states. [2021-12-28 04:50:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52016 to 49312. [2021-12-28 04:50:27,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49312 states, 32330 states have (on average 1.2090009279307146) internal successors, (39087), 33294 states have internal predecessors, (39087), 13372 states have call successors, (13372), 3620 states have call predecessors, (13372), 3607 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2021-12-28 04:50:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49312 states to 49312 states and 65990 transitions. [2021-12-28 04:50:27,805 INFO L78 Accepts]: Start accepts. Automaton has 49312 states and 65990 transitions. Word has length 153 [2021-12-28 04:50:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:27,806 INFO L470 AbstractCegarLoop]: Abstraction has 49312 states and 65990 transitions. [2021-12-28 04:50:27,806 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-28 04:50:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 49312 states and 65990 transitions. [2021-12-28 04:50:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-28 04:50:27,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:27,807 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-12-28 04:50:27,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:50:27,807 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 04:50:27,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:27,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1294364376, now seen corresponding path program 1 times [2021-12-28 04:50:27,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:27,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108737218] [2021-12-28 04:50:27,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:27,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 04:50:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:50:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:50:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:50:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:50:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-12-28 04:50:28,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108737218] [2021-12-28 04:50:28,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108737218] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:28,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:28,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:28,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160112705] [2021-12-28 04:50:28,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:28,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:28,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:28,194 INFO L87 Difference]: Start difference. First operand 49312 states and 65990 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:50:31,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:31,257 INFO L93 Difference]: Finished difference Result 51998 states and 70164 transitions. [2021-12-28 04:50:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:31,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2021-12-28 04:50:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:31,441 INFO L225 Difference]: With dead ends: 51998 [2021-12-28 04:50:31,441 INFO L226 Difference]: Without dead ends: 51996 [2021-12-28 04:50:31,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:50:31,472 INFO L933 BasicCegarLoop]: 2215 mSDtfsCounter, 2439 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 1108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 5424 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1108 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:31,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2732 Valid, 5424 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1108 Valid, 2978 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-28 04:50:31,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51996 states. [2021-12-28 04:50:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51996 to 49316. [2021-12-28 04:50:32,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49316 states, 32333 states have (on average 1.2089815358921225) internal successors, (39090), 33297 states have internal predecessors, (39090), 13372 states have call successors, (13372), 3621 states have call predecessors, (13372), 3608 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2021-12-28 04:50:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49316 states to 49316 states and 65993 transitions. [2021-12-28 04:50:33,133 INFO L78 Accepts]: Start accepts. Automaton has 49316 states and 65993 transitions. Word has length 153 [2021-12-28 04:50:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:33,134 INFO L470 AbstractCegarLoop]: Abstraction has 49316 states and 65993 transitions. [2021-12-28 04:50:33,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:50:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 49316 states and 65993 transitions. [2021-12-28 04:50:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-28 04:50:33,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:33,137 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2021-12-28 04:50:33,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 04:50:33,137 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 04:50:33,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:33,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1991578833, now seen corresponding path program 1 times [2021-12-28 04:50:33,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:33,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175414405] [2021-12-28 04:50:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:33,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 04:50:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:50:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:50:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:50:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:50:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 04:50:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-12-28 04:50:33,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:33,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175414405] [2021-12-28 04:50:33,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175414405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:33,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:33,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:33,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132778917] [2021-12-28 04:50:33,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:33,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:33,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:33,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:33,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:33,392 INFO L87 Difference]: Start difference. First operand 49316 states and 65993 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:50:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:36,632 INFO L93 Difference]: Finished difference Result 52002 states and 70167 transitions. [2021-12-28 04:50:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:36,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2021-12-28 04:50:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:36,802 INFO L225 Difference]: With dead ends: 52002 [2021-12-28 04:50:36,802 INFO L226 Difference]: Without dead ends: 52000 [2021-12-28 04:50:36,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:50:36,829 INFO L933 BasicCegarLoop]: 2218 mSDtfsCounter, 2431 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 1107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 5427 SdHoareTripleChecker+Invalid, 4085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:36,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 5427 Invalid, 4085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1107 Valid, 2978 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-28 04:50:36,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52000 states. [2021-12-28 04:50:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52000 to 49320. [2021-12-28 04:50:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49320 states, 32336 states have (on average 1.2089621474517565) internal successors, (39093), 33300 states have internal predecessors, (39093), 13372 states have call successors, (13372), 3622 states have call predecessors, (13372), 3609 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2021-12-28 04:50:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49320 states to 49320 states and 65996 transitions. [2021-12-28 04:50:38,487 INFO L78 Accepts]: Start accepts. Automaton has 49320 states and 65996 transitions. Word has length 158 [2021-12-28 04:50:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:38,488 INFO L470 AbstractCegarLoop]: Abstraction has 49320 states and 65996 transitions. [2021-12-28 04:50:38,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:50:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 49320 states and 65996 transitions. [2021-12-28 04:50:38,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-28 04:50:38,489 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:38,490 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 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] [2021-12-28 04:50:38,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 04:50:38,490 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 04:50:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1313811128, now seen corresponding path program 1 times [2021-12-28 04:50:38,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:38,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78977921] [2021-12-28 04:50:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:38,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 04:50:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:50:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:50:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:50:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:50:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 04:50:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:50:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-12-28 04:50:38,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:38,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78977921] [2021-12-28 04:50:38,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78977921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:38,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:38,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:38,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887062996] [2021-12-28 04:50:38,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:38,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:38,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:38,851 INFO L87 Difference]: Start difference. First operand 49320 states and 65996 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 04:50:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:42,038 INFO L93 Difference]: Finished difference Result 52006 states and 70170 transitions. [2021-12-28 04:50:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:42,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2021-12-28 04:50:42,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:42,212 INFO L225 Difference]: With dead ends: 52006 [2021-12-28 04:50:42,212 INFO L226 Difference]: Without dead ends: 52004 [2021-12-28 04:50:42,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:50:42,235 INFO L933 BasicCegarLoop]: 2218 mSDtfsCounter, 2431 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 1106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 5427 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1106 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:42,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 5427 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1106 Valid, 2978 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 04:50:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52004 states. [2021-12-28 04:50:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52004 to 49324. [2021-12-28 04:50:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49324 states, 32339 states have (on average 1.2089427626086149) internal successors, (39096), 33303 states have internal predecessors, (39096), 13372 states have call successors, (13372), 3623 states have call predecessors, (13372), 3610 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2021-12-28 04:50:43,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49324 states to 49324 states and 65999 transitions. [2021-12-28 04:50:43,970 INFO L78 Accepts]: Start accepts. Automaton has 49324 states and 65999 transitions. Word has length 163 [2021-12-28 04:50:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:43,971 INFO L470 AbstractCegarLoop]: Abstraction has 49324 states and 65999 transitions. [2021-12-28 04:50:43,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 04:50:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 49324 states and 65999 transitions. [2021-12-28 04:50:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-28 04:50:43,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:43,973 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:50:43,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 04:50:43,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 04:50:43,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:43,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2033412751, now seen corresponding path program 1 times [2021-12-28 04:50:43,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:43,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651272198] [2021-12-28 04:50:43,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:43,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:50:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:50:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:50:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:50:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 04:50:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:50:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:50:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:50:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:50:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:50:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:50:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 04:50:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:50:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 04:50:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-28 04:50:44,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:50:44,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651272198] [2021-12-28 04:50:44,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651272198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:50:44,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:50:44,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:50:44,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212603708] [2021-12-28 04:50:44,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:50:44,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:50:44,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:50:44,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:50:44,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:50:44,183 INFO L87 Difference]: Start difference. First operand 49324 states and 65999 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 04:50:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:50:47,538 INFO L93 Difference]: Finished difference Result 52010 states and 70173 transitions. [2021-12-28 04:50:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:50:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2021-12-28 04:50:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:50:47,694 INFO L225 Difference]: With dead ends: 52010 [2021-12-28 04:50:47,694 INFO L226 Difference]: Without dead ends: 52008 [2021-12-28 04:50:47,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:50:47,724 INFO L933 BasicCegarLoop]: 2218 mSDtfsCounter, 2431 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 1105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 5427 SdHoareTripleChecker+Invalid, 4083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1105 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:50:47,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 5427 Invalid, 4083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1105 Valid, 2978 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 04:50:47,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52008 states. [2021-12-28 04:50:49,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52008 to 49328. [2021-12-28 04:50:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49328 states, 32342 states have (on average 1.2089233813616969) internal successors, (39099), 33306 states have internal predecessors, (39099), 13372 states have call successors, (13372), 3624 states have call predecessors, (13372), 3611 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2021-12-28 04:50:49,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49328 states to 49328 states and 66002 transitions. [2021-12-28 04:50:49,530 INFO L78 Accepts]: Start accepts. Automaton has 49328 states and 66002 transitions. Word has length 168 [2021-12-28 04:50:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:50:49,530 INFO L470 AbstractCegarLoop]: Abstraction has 49328 states and 66002 transitions. [2021-12-28 04:50:49,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 04:50:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 49328 states and 66002 transitions. [2021-12-28 04:50:49,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-28 04:50:49,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:50:49,533 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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] [2021-12-28 04:50:49,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 04:50:49,534 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 04:50:49,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:50:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash -833937048, now seen corresponding path program 1 times [2021-12-28 04:50:49,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:50:49,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047771393] [2021-12-28 04:50:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:50:49,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:50:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:50:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:50:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:50:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:50:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:50:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:50:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat