./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.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 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 19:04:55,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 19:04:55,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 19:04:55,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 19:04:55,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 19:04:55,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 19:04:55,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 19:04:55,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 19:04:55,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 19:04:55,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 19:04:55,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 19:04:55,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 19:04:55,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 19:04:55,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 19:04:55,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 19:04:55,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 19:04:56,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 19:04:56,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 19:04:56,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 19:04:56,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 19:04:56,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 19:04:56,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 19:04:56,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 19:04:56,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 19:04:56,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 19:04:56,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 19:04:56,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 19:04:56,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 19:04:56,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 19:04:56,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 19:04:56,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 19:04:56,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 19:04:56,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 19:04:56,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 19:04:56,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 19:04:56,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 19:04:56,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 19:04:56,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 19:04:56,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 19:04:56,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 19:04:56,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 19:04:56,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 19:04:56,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 19:04:56,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 19:04:56,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 19:04:56,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 19:04:56,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 19:04:56,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 19:04:56,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 19:04:56,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 19:04:56,061 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 19:04:56,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 19:04:56,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 19:04:56,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 19:04:56,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 19:04:56,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 19:04:56,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 19:04:56,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 19:04:56,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 19:04:56,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 19:04:56,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 19:04:56,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 19:04:56,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 19:04:56,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:04:56,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 19:04:56,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 19:04:56,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 19:04:56,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 19:04:56,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 19:04:56,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 19:04:56,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 19:04:56,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 19:04:56,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 19:04:56,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2021-12-14 19:04:56,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 19:04:56,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 19:04:56,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 19:04:56,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 19:04:56,321 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 19:04:56,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-12-14 19:04:56,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ded546fc/bad4ef94a95a4a4e82481301d0717a0e/FLAGf25a143b2 [2021-12-14 19:04:57,194 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 19:04:57,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-12-14 19:04:57,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ded546fc/bad4ef94a95a4a4e82481301d0717a0e/FLAGf25a143b2 [2021-12-14 19:04:57,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ded546fc/bad4ef94a95a4a4e82481301d0717a0e [2021-12-14 19:04:57,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 19:04:57,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 19:04:57,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 19:04:57,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 19:04:57,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 19:04:57,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:57" (1/1) ... [2021-12-14 19:04:57,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6881ba05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:57, skipping insertion in model container [2021-12-14 19:04:57,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:57" (1/1) ... [2021-12-14 19:04:57,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 19:04:57,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 19:05:00,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2021-12-14 19:05:00,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2021-12-14 19:05:00,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2021-12-14 19:05:00,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2021-12-14 19:05:00,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:05:00,365 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 19:05:00,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2021-12-14 19:05:00,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2021-12-14 19:05:00,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2021-12-14 19:05:00,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2021-12-14 19:05:00,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:05:00,849 INFO L208 MainTranslator]: Completed translation [2021-12-14 19:05:00,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00 WrapperNode [2021-12-14 19:05:00,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 19:05:00,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 19:05:00,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 19:05:00,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 19:05:00,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:00,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,168 INFO L137 Inliner]: procedures = 431, calls = 2260, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4820 [2021-12-14 19:05:01,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 19:05:01,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 19:05:01,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 19:05:01,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 19:05:01,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 19:05:01,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 19:05:01,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 19:05:01,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 19:05:01,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (1/1) ... [2021-12-14 19:05:01,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:05:01,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 19:05:01,508 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) [2021-12-14 19:05:01,535 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 [2021-12-14 19:05:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-12-14 19:05:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-12-14 19:05:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 19:05:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 19:05:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 19:05:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 19:05:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 19:05:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 19:05:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-12-14 19:05:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-12-14 19:05:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 19:05:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 19:05:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-12-14 19:05:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-12-14 19:05:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-12-14 19:05:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-12-14 19:05:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 19:05:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 19:05:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 19:05:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 19:05:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-12-14 19:05:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-12-14 19:05:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-12-14 19:05:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-12-14 19:05:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-12-14 19:05:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-12-14 19:05:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-12-14 19:05:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-12-14 19:05:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 19:05:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 19:05:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 19:05:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 19:05:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 19:05:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 19:05:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 19:05:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 19:05:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 19:05:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 19:05:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 19:05:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 19:05:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 19:05:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-12-14 19:05:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-12-14 19:05:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2021-12-14 19:05:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2021-12-14 19:05:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_65 [2021-12-14 19:05:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_65 [2021-12-14 19:05:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 19:05:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 19:05:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-12-14 19:05:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-12-14 19:05:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-14 19:05:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-14 19:05:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2021-12-14 19:05:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2021-12-14 19:05:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2021-12-14 19:05:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2021-12-14 19:05:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-12-14 19:05:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-12-14 19:05:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 19:05:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 19:05:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 19:05:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 19:05:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 19:05:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 19:05:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 19:05:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 19:05:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 19:05:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 19:05:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 19:05:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-12-14 19:05:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-12-14 19:05:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2021-12-14 19:05:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2021-12-14 19:05:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-12-14 19:05:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-12-14 19:05:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-12-14 19:05:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-12-14 19:05:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 19:05:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 19:05:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 19:05:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 19:05:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-12-14 19:05:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-12-14 19:05:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-12-14 19:05:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-12-14 19:05:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-12-14 19:05:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-12-14 19:05:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 19:05:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 19:05:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 19:05:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-12-14 19:05:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-12-14 19:05:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-12-14 19:05:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-12-14 19:05:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-14 19:05:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-14 19:05:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 19:05:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 19:05:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 19:05:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 19:05:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 19:05:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 19:05:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 19:05:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 19:05:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 19:05:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-12-14 19:05:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-12-14 19:05:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-14 19:05:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-14 19:05:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 19:05:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 19:05:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 19:05:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 19:05:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-12-14 19:05:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-12-14 19:05:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-14 19:05:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-14 19:05:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-12-14 19:05:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-12-14 19:05:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-12-14 19:05:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-12-14 19:05:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 19:05:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 19:05:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-14 19:05:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-14 19:05:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2021-12-14 19:05:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2021-12-14 19:05:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 19:05:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 19:05:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 19:05:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 19:05:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 19:05:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 19:05:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-14 19:05:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-14 19:05:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-12-14 19:05:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-12-14 19:05:01,571 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-12-14 19:05:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-12-14 19:05:01,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 19:05:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 19:05:01,571 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2021-12-14 19:05:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2021-12-14 19:05:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 19:05:01,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 19:05:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 19:05:01,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 19:05:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-14 19:05:01,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-14 19:05:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2021-12-14 19:05:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2021-12-14 19:05:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 19:05:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-12-14 19:05:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-12-14 19:05:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 19:05:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 19:05:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 19:05:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-14 19:05:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-14 19:05:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-12-14 19:05:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-12-14 19:05:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 19:05:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-12-14 19:05:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-12-14 19:05:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-12-14 19:05:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-12-14 19:05:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-14 19:05:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-14 19:05:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 19:05:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 19:05:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-14 19:05:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-14 19:05:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 19:05:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 19:05:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-14 19:05:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-14 19:05:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-12-14 19:05:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-12-14 19:05:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-12-14 19:05:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-12-14 19:05:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 19:05:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 19:05:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 19:05:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 19:05:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-12-14 19:05:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-12-14 19:05:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 19:05:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 19:05:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-12-14 19:05:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-12-14 19:05:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-12-14 19:05:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-12-14 19:05:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 19:05:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-12-14 19:05:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-12-14 19:05:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 19:05:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 19:05:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-12-14 19:05:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-12-14 19:05:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-14 19:05:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-14 19:05:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-12-14 19:05:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-12-14 19:05:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-12-14 19:05:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-12-14 19:05:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2021-12-14 19:05:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2021-12-14 19:05:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-12-14 19:05:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-12-14 19:05:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 19:05:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 19:05:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2021-12-14 19:05:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2021-12-14 19:05:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-14 19:05:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-14 19:05:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-14 19:05:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-14 19:05:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-14 19:05:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-14 19:05:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 19:05:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-14 19:05:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-14 19:05:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-14 19:05:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 19:05:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 19:05:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-14 19:05:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-14 19:05:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-14 19:05:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-14 19:05:02,397 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 19:05:02,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 19:05:03,281 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 19:05:05,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume 0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616; [2021-12-14 19:05:05,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume !(0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616); [2021-12-14 19:05:05,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2021-12-14 19:05:05,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2021-12-14 19:05:05,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976-2: SUMMARY for call tlan_eisa_probe_#t~ret340#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-14 19:05:05,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2021-12-14 19:05:05,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume !(16 == ~debug~0); [2021-12-14 19:05:05,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-12-14 19:05:05,136 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-12-14 19:05:05,136 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret336#1;havoc tlan_eisa_probe_#t~ret336#1; [2021-12-14 19:05:05,136 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret336#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-14 19:05:05,137 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7014: SUMMARY for call tlan_eisa_probe_#t~ret341#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2021-12-14 19:05:05,137 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2021-12-14 19:05:05,137 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2021-12-14 19:05:05,138 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6983: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret340#1;havoc tlan_eisa_probe_#t~ret340#1; [2021-12-14 19:05:05,138 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-12-14 19:05:05,138 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-12-14 19:05:05,143 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume !(16 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~nondet331#1; [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920: SUMMARY for call tlan_eisa_probe_#t~ret330#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6987: tlan_eisa_probe_~irq~0#1 := 5; [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021: assume -2147483648 <= tlan_eisa_probe_#t~ret341#1 && tlan_eisa_probe_#t~ret341#1 <= 2147483647;tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret341#1;havoc tlan_eisa_probe_#t~ret341#1; [2021-12-14 19:05:05,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-14 19:05:05,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume !(32 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-14 19:05:05,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2021-12-14 19:05:05,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-14 19:05:05,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6991: tlan_eisa_probe_~irq~0#1 := 9; [2021-12-14 19:05:05,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume 0 != ~bitwiseAnd(~debug~0, 16);havoc tlan_eisa_probe_#t~nondet334#1; [2021-12-14 19:05:05,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-12-14 19:05:05,146 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2021-12-14 19:05:05,150 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2021-12-14 19:05:05,150 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~nondet333#1; [2021-12-14 19:05:05,150 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-14 19:05:05,150 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-14 19:05:05,150 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume !(64 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6961: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6995: tlan_eisa_probe_~irq~0#1 := 10; [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume !(128 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-1: call tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset;havoc tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset; [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6999: tlan_eisa_probe_~irq~0#1 := 11; [2021-12-14 19:05:05,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2021-12-14 19:05:05,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-14 19:05:05,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7033-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2021-12-14 19:05:05,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet342#1; [2021-12-14 19:05:05,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume !(16 == ~debug~0); [2021-12-14 19:05:05,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2021-12-14 19:05:05,152 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2021-12-14 19:05:05,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet343#1; [2021-12-14 19:05:05,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume !(16 == ~debug~0); [2021-12-14 19:05:05,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-12-14 19:05:05,259 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 19:05:05,274 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 19:05:05,274 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 19:05:05,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:05:05 BoogieIcfgContainer [2021-12-14 19:05:05,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 19:05:05,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 19:05:05,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 19:05:05,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 19:05:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:04:57" (1/3) ... [2021-12-14 19:05:05,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176c5cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:05:05, skipping insertion in model container [2021-12-14 19:05:05,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:00" (2/3) ... [2021-12-14 19:05:05,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176c5cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:05:05, skipping insertion in model container [2021-12-14 19:05:05,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:05:05" (3/3) ... [2021-12-14 19:05:05,285 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-12-14 19:05:05,290 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 19:05:05,290 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 19:05:05,349 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 19:05:05,363 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 [2021-12-14 19:05:05,364 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 19:05:05,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) [2021-12-14 19:05:05,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-14 19:05:05,427 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:05,428 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-14 19:05:05,428 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)] === [2021-12-14 19:05:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1354900798, now seen corresponding path program 1 times [2021-12-14 19:05:05,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103849205] [2021-12-14 19:05:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:05,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 19:05:06,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:06,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103849205] [2021-12-14 19:05:06,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103849205] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:06,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:06,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:06,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283013747] [2021-12-14 19:05:06,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:06,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:06,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:06,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:06,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:06,094 INFO L87 Difference]: Start difference. First operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-14 19:05:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:06,474 INFO L93 Difference]: Finished difference Result 3951 states and 5711 transitions. [2021-12-14 19:05:06,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:06,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2021-12-14 19:05:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:06,509 INFO L225 Difference]: With dead ends: 3951 [2021-12-14 19:05:06,510 INFO L226 Difference]: Without dead ends: 1979 [2021-12-14 19:05:06,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:06,540 INFO L933 BasicCegarLoop]: 2779 mSDtfsCounter, 2754 mSDsluCounter, 5545 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 8324 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:06,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 8324 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2021-12-14 19:05:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1979. [2021-12-14 19:05:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1272 states have (on average 1.2429245283018868) internal successors, (1581), 1327 states have internal predecessors, (1581), 597 states have call successors, (597), 108 states have call predecessors, (597), 107 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-14 19:05:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2772 transitions. [2021-12-14 19:05:06,746 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2772 transitions. Word has length 52 [2021-12-14 19:05:06,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:06,747 INFO L470 AbstractCegarLoop]: Abstraction has 1979 states and 2772 transitions. [2021-12-14 19:05:06,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-14 19:05:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2772 transitions. [2021-12-14 19:05:06,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-14 19:05:06,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:06,755 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-14 19:05:06,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 19:05:06,756 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:05:06,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:06,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2057662250, now seen corresponding path program 1 times [2021-12-14 19:05:06,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:06,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215549139] [2021-12-14 19:05:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:06,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:06,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 19:05:07,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:07,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215549139] [2021-12-14 19:05:07,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215549139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:07,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:07,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:07,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669806492] [2021-12-14 19:05:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:07,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:07,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:07,095 INFO L87 Difference]: Start difference. First operand 1979 states and 2772 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 19:05:07,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:07,244 INFO L93 Difference]: Finished difference Result 1985 states and 2777 transitions. [2021-12-14 19:05:07,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:07,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2021-12-14 19:05:07,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:07,258 INFO L225 Difference]: With dead ends: 1985 [2021-12-14 19:05:07,258 INFO L226 Difference]: Without dead ends: 1983 [2021-12-14 19:05:07,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:07,261 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2747 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:07,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2747 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:07,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-12-14 19:05:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1983. [2021-12-14 19:05:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1275 states have (on average 1.2423529411764707) internal successors, (1584), 1330 states have internal predecessors, (1584), 597 states have call successors, (597), 109 states have call predecessors, (597), 108 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-14 19:05:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2775 transitions. [2021-12-14 19:05:07,379 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2775 transitions. Word has length 57 [2021-12-14 19:05:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:07,380 INFO L470 AbstractCegarLoop]: Abstraction has 1983 states and 2775 transitions. [2021-12-14 19:05:07,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 19:05:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2775 transitions. [2021-12-14 19:05:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-14 19:05:07,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:07,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 19:05:07,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 19:05:07,385 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-12-14 19:05:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash -721576190, now seen corresponding path program 1 times [2021-12-14 19:05:07,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:07,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291268123] [2021-12-14 19:05:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:07,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 19:05:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-14 19:05:07,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:07,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291268123] [2021-12-14 19:05:07,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291268123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:07,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:07,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:07,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509164028] [2021-12-14 19:05:07,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:07,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:07,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:07,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:07,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:07,613 INFO L87 Difference]: Start difference. First operand 1983 states and 2775 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 19:05:07,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:07,819 INFO L93 Difference]: Finished difference Result 1989 states and 2780 transitions. [2021-12-14 19:05:07,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:07,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-12-14 19:05:07,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:07,830 INFO L225 Difference]: With dead ends: 1989 [2021-12-14 19:05:07,831 INFO L226 Difference]: Without dead ends: 1987 [2021-12-14 19:05:07,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:07,833 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:07,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-12-14 19:05:07,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1987. [2021-12-14 19:05:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1278 states have (on average 1.2417840375586855) internal successors, (1587), 1333 states have internal predecessors, (1587), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-14 19:05:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2778 transitions. [2021-12-14 19:05:07,930 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2778 transitions. Word has length 62 [2021-12-14 19:05:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:07,930 INFO L470 AbstractCegarLoop]: Abstraction has 1987 states and 2778 transitions. [2021-12-14 19:05:07,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 19:05:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2778 transitions. [2021-12-14 19:05:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-14 19:05:07,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:07,932 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-12-14 19:05:07,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 19:05:07,932 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-12-14 19:05:07,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:07,933 INFO L85 PathProgramCache]: Analyzing trace with hash 38118422, now seen corresponding path program 1 times [2021-12-14 19:05:07,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:07,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230655739] [2021-12-14 19:05:07,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:07,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 19:05:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:05:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 19:05:08,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:08,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230655739] [2021-12-14 19:05:08,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230655739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:08,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:08,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:08,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205693167] [2021-12-14 19:05:08,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:08,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:08,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:08,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:08,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:08,114 INFO L87 Difference]: Start difference. First operand 1987 states and 2778 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-14 19:05:08,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:08,242 INFO L93 Difference]: Finished difference Result 1993 states and 2783 transitions. [2021-12-14 19:05:08,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:08,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-12-14 19:05:08,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:08,254 INFO L225 Difference]: With dead ends: 1993 [2021-12-14 19:05:08,254 INFO L226 Difference]: Without dead ends: 1991 [2021-12-14 19:05:08,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:08,256 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:08,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2745 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2021-12-14 19:05:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2021-12-14 19:05:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1281 states have (on average 1.2412177985948478) internal successors, (1590), 1336 states have internal predecessors, (1590), 597 states have call successors, (597), 111 states have call predecessors, (597), 110 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-14 19:05:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2781 transitions. [2021-12-14 19:05:08,355 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2781 transitions. Word has length 67 [2021-12-14 19:05:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:08,355 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 2781 transitions. [2021-12-14 19:05:08,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-14 19:05:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2781 transitions. [2021-12-14 19:05:08,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-14 19:05:08,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:08,357 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-12-14 19:05:08,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 19:05:08,358 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-12-14 19:05:08,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash -118986273, now seen corresponding path program 1 times [2021-12-14 19:05:08,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:08,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132707086] [2021-12-14 19:05:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:08,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:05:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 19:05:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 19:05:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 19:05:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 19:05:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,545 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-14 19:05:08,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:08,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132707086] [2021-12-14 19:05:08,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132707086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:08,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:08,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:08,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789540801] [2021-12-14 19:05:08,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:08,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:08,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:08,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:08,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:08,548 INFO L87 Difference]: Start difference. First operand 1991 states and 2781 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 19:05:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:08,696 INFO L93 Difference]: Finished difference Result 1997 states and 2786 transitions. [2021-12-14 19:05:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:08,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2021-12-14 19:05:08,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:08,707 INFO L225 Difference]: With dead ends: 1997 [2021-12-14 19:05:08,707 INFO L226 Difference]: Without dead ends: 1995 [2021-12-14 19:05:08,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:08,709 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:08,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2737 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2021-12-14 19:05:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2021-12-14 19:05:08,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1284 states have (on average 1.2406542056074767) internal successors, (1593), 1339 states have internal predecessors, (1593), 597 states have call successors, (597), 112 states have call predecessors, (597), 111 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-14 19:05:08,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2784 transitions. [2021-12-14 19:05:08,808 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2784 transitions. Word has length 86 [2021-12-14 19:05:08,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:08,809 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 2784 transitions. [2021-12-14 19:05:08,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 19:05:08,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2784 transitions. [2021-12-14 19:05:08,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-14 19:05:08,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:08,811 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2021-12-14 19:05:08,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 19:05:08,811 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)] === [2021-12-14 19:05:08,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:08,812 INFO L85 PathProgramCache]: Analyzing trace with hash -363636906, now seen corresponding path program 1 times [2021-12-14 19:05:08,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:08,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137805528] [2021-12-14 19:05:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:08,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 19:05:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:05:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 19:05:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:05:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-14 19:05:08,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:08,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137805528] [2021-12-14 19:05:08,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137805528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:08,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:08,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:08,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665300215] [2021-12-14 19:05:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:08,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:08,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:08,984 INFO L87 Difference]: Start difference. First operand 1995 states and 2784 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 19:05:09,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:09,118 INFO L93 Difference]: Finished difference Result 2001 states and 2789 transitions. [2021-12-14 19:05:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:09,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-12-14 19:05:09,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:09,130 INFO L225 Difference]: With dead ends: 2001 [2021-12-14 19:05:09,131 INFO L226 Difference]: Without dead ends: 1999 [2021-12-14 19:05:09,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:09,133 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:09,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2743 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:09,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2021-12-14 19:05:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2021-12-14 19:05:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1287 states have (on average 1.24009324009324) internal successors, (1596), 1342 states have internal predecessors, (1596), 597 states have call successors, (597), 113 states have call predecessors, (597), 112 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-14 19:05:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2787 transitions. [2021-12-14 19:05:09,238 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2787 transitions. Word has length 77 [2021-12-14 19:05:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:09,238 INFO L470 AbstractCegarLoop]: Abstraction has 1999 states and 2787 transitions. [2021-12-14 19:05:09,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 19:05:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2787 transitions. [2021-12-14 19:05:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-14 19:05:09,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:09,240 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2021-12-14 19:05:09,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 19:05:09,241 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)] === [2021-12-14 19:05:09,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:09,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2056173694, now seen corresponding path program 1 times [2021-12-14 19:05:09,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:09,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434802630] [2021-12-14 19:05:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:09,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 19:05:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:05:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 19:05:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:05:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 19:05:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-14 19:05:09,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:09,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434802630] [2021-12-14 19:05:09,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434802630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:09,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:09,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:09,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928674154] [2021-12-14 19:05:09,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:09,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:09,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:09,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:09,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:09,479 INFO L87 Difference]: Start difference. First operand 1999 states and 2787 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 19:05:09,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:09,716 INFO L93 Difference]: Finished difference Result 3638 states and 5219 transitions. [2021-12-14 19:05:09,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:05:09,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2021-12-14 19:05:09,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:09,741 INFO L225 Difference]: With dead ends: 3638 [2021-12-14 19:05:09,741 INFO L226 Difference]: Without dead ends: 3636 [2021-12-14 19:05:09,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:09,745 INFO L933 BasicCegarLoop]: 3678 mSDtfsCounter, 2361 mSDsluCounter, 10119 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 13797 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:09,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2366 Valid, 13797 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:09,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-12-14 19:05:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3628. [2021-12-14 19:05:09,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 2342 states have (on average 1.2369769427839454) internal successors, (2897), 2448 states have internal predecessors, (2897), 1066 states have call successors, (1066), 224 states have call predecessors, (1066), 217 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-14 19:05:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5212 transitions. [2021-12-14 19:05:09,988 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5212 transitions. Word has length 82 [2021-12-14 19:05:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:09,988 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5212 transitions. [2021-12-14 19:05:09,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 19:05:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5212 transitions. [2021-12-14 19:05:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-14 19:05:09,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:09,992 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2021-12-14 19:05:09,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 19:05:09,992 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)] === [2021-12-14 19:05:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:09,993 INFO L85 PathProgramCache]: Analyzing trace with hash 444487257, now seen corresponding path program 1 times [2021-12-14 19:05:09,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:09,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145881450] [2021-12-14 19:05:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:09,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:05:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 19:05:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 19:05:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 19:05:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 19:05:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 19:05:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 19:05:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-14 19:05:10,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:10,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145881450] [2021-12-14 19:05:10,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145881450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:10,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:10,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:10,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148549104] [2021-12-14 19:05:10,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:10,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:10,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:10,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:10,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:10,290 INFO L87 Difference]: Start difference. First operand 3628 states and 5212 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 19:05:10,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:10,515 INFO L93 Difference]: Finished difference Result 3638 states and 5221 transitions. [2021-12-14 19:05:10,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:10,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-12-14 19:05:10,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:10,537 INFO L225 Difference]: With dead ends: 3638 [2021-12-14 19:05:10,537 INFO L226 Difference]: Without dead ends: 3636 [2021-12-14 19:05:10,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:10,540 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:10,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2734 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-12-14 19:05:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3636. [2021-12-14 19:05:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 2348 states have (on average 1.2363713798977853) internal successors, (2903), 2454 states have internal predecessors, (2903), 1066 states have call successors, (1066), 226 states have call predecessors, (1066), 219 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-14 19:05:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5218 transitions. [2021-12-14 19:05:10,792 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5218 transitions. Word has length 101 [2021-12-14 19:05:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:10,793 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 5218 transitions. [2021-12-14 19:05:10,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 19:05:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5218 transitions. [2021-12-14 19:05:10,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-14 19:05:10,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:10,795 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2021-12-14 19:05:10,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 19:05:10,796 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)] === [2021-12-14 19:05:10,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash 145121759, now seen corresponding path program 1 times [2021-12-14 19:05:10,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:10,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316193957] [2021-12-14 19:05:10,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:10,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:05:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 19:05:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 19:05:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 19:05:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 19:05:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 19:05:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 19:05:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 19:05:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-14 19:05:11,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:11,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316193957] [2021-12-14 19:05:11,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316193957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:11,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:11,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:11,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642137254] [2021-12-14 19:05:11,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:11,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:11,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:11,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:11,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:11,050 INFO L87 Difference]: Start difference. First operand 3636 states and 5218 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:05:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:11,286 INFO L93 Difference]: Finished difference Result 3646 states and 5227 transitions. [2021-12-14 19:05:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:11,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 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 106 [2021-12-14 19:05:11,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:11,310 INFO L225 Difference]: With dead ends: 3646 [2021-12-14 19:05:11,310 INFO L226 Difference]: Without dead ends: 3644 [2021-12-14 19:05:11,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:11,313 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:11,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2733 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:11,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2021-12-14 19:05:11,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 3644. [2021-12-14 19:05:11,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2354 states have (on average 1.2357689039932032) internal successors, (2909), 2460 states have internal predecessors, (2909), 1066 states have call successors, (1066), 228 states have call predecessors, (1066), 221 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-14 19:05:11,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 5224 transitions. [2021-12-14 19:05:11,525 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 5224 transitions. Word has length 106 [2021-12-14 19:05:11,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:11,525 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 5224 transitions. [2021-12-14 19:05:11,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:05:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 5224 transitions. [2021-12-14 19:05:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-14 19:05:11,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:11,527 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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] [2021-12-14 19:05:11,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 19:05:11,528 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)] === [2021-12-14 19:05:11,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:11,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1569960409, now seen corresponding path program 1 times [2021-12-14 19:05:11,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:11,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310861252] [2021-12-14 19:05:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:11,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:05:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 19:05:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 19:05:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 19:05:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 19:05:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 19:05:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 19:05:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 19:05:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 19:05:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-14 19:05:11,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310861252] [2021-12-14 19:05:11,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310861252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:11,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:11,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:11,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662142395] [2021-12-14 19:05:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:11,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:11,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:11,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:11,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:11,724 INFO L87 Difference]: Start difference. First operand 3644 states and 5224 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 19:05:11,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:11,924 INFO L93 Difference]: Finished difference Result 3654 states and 5233 transitions. [2021-12-14 19:05:11,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:11,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 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 111 [2021-12-14 19:05:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:11,945 INFO L225 Difference]: With dead ends: 3654 [2021-12-14 19:05:11,945 INFO L226 Difference]: Without dead ends: 3652 [2021-12-14 19:05:11,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:11,948 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:11,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2732 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2021-12-14 19:05:12,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3652. [2021-12-14 19:05:12,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2360 states have (on average 1.2351694915254237) internal successors, (2915), 2466 states have internal predecessors, (2915), 1066 states have call successors, (1066), 230 states have call predecessors, (1066), 223 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-14 19:05:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5230 transitions. [2021-12-14 19:05:12,189 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5230 transitions. Word has length 111 [2021-12-14 19:05:12,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:12,189 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5230 transitions. [2021-12-14 19:05:12,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 19:05:12,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5230 transitions. [2021-12-14 19:05:12,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-14 19:05:12,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:12,191 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 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] [2021-12-14 19:05:12,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 19:05:12,192 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)] === [2021-12-14 19:05:12,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1906809377, now seen corresponding path program 1 times [2021-12-14 19:05:12,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:12,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51608442] [2021-12-14 19:05:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:12,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 19:05:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 19:05:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 19:05:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 19:05:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 19:05:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 19:05:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 19:05:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 19:05:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 19:05:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 19:05:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-14 19:05:12,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:12,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51608442] [2021-12-14 19:05:12,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51608442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:12,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:12,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:12,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462737175] [2021-12-14 19:05:12,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:12,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:12,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:12,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:12,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:12,391 INFO L87 Difference]: Start difference. First operand 3652 states and 5230 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 19:05:12,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:12,591 INFO L93 Difference]: Finished difference Result 3662 states and 5239 transitions. [2021-12-14 19:05:12,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:12,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 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 116 [2021-12-14 19:05:12,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:12,609 INFO L225 Difference]: With dead ends: 3662 [2021-12-14 19:05:12,609 INFO L226 Difference]: Without dead ends: 3658 [2021-12-14 19:05:12,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:12,612 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:12,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2731 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:12,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2021-12-14 19:05:12,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3658. [2021-12-14 19:05:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 2365 states have (on average 1.2342494714587737) internal successors, (2919), 2470 states have internal predecessors, (2919), 1066 states have call successors, (1066), 232 states have call predecessors, (1066), 224 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-14 19:05:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 5234 transitions. [2021-12-14 19:05:12,800 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 5234 transitions. Word has length 116 [2021-12-14 19:05:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:12,801 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 5234 transitions. [2021-12-14 19:05:12,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 19:05:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5234 transitions. [2021-12-14 19:05:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-14 19:05:12,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:12,803 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2021-12-14 19:05:12,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 19:05:12,804 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:05:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:12,804 INFO L85 PathProgramCache]: Analyzing trace with hash 729559318, now seen corresponding path program 1 times [2021-12-14 19:05:12,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:12,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464596328] [2021-12-14 19:05:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:12,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:05:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 19:05:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 19:05:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 19:05:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 19:05:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 19:05:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 19:05:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 19:05:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 19:05:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 19:05:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 19:05:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 19:05:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 19:05:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 19:05:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-14 19:05:12,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:12,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464596328] [2021-12-14 19:05:12,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464596328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:12,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:12,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:12,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512758188] [2021-12-14 19:05:12,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:12,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:12,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:12,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:13,012 INFO L87 Difference]: Start difference. First operand 3658 states and 5234 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 19:05:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:13,196 INFO L93 Difference]: Finished difference Result 3664 states and 5239 transitions. [2021-12-14 19:05:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:05:13,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 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 107 [2021-12-14 19:05:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:13,213 INFO L225 Difference]: With dead ends: 3664 [2021-12-14 19:05:13,213 INFO L226 Difference]: Without dead ends: 3571 [2021-12-14 19:05:13,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:13,215 INFO L933 BasicCegarLoop]: 2770 mSDtfsCounter, 2737 mSDsluCounter, 5521 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 8291 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:13,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2737 Valid, 8291 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:05:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-12-14 19:05:13,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3571. [2021-12-14 19:05:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2314 states have (on average 1.2376836646499567) internal successors, (2864), 2417 states have internal predecessors, (2864), 1046 states have call successors, (1046), 215 states have call predecessors, (1046), 208 states have return successors, (1232), 994 states have call predecessors, (1232), 1043 states have call successors, (1232) [2021-12-14 19:05:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 5142 transitions. [2021-12-14 19:05:13,397 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 5142 transitions. Word has length 107 [2021-12-14 19:05:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:13,397 INFO L470 AbstractCegarLoop]: Abstraction has 3571 states and 5142 transitions. [2021-12-14 19:05:13,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 19:05:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 5142 transitions. [2021-12-14 19:05:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-14 19:05:13,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:13,400 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:13,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 19:05:13,400 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-12-14 19:05:13,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:13,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1764869361, now seen corresponding path program 1 times [2021-12-14 19:05:13,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:13,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082549914] [2021-12-14 19:05:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:13,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:05:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:05:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:05:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:05:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 19:05:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 19:05:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 19:05:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 19:05:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:05:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-14 19:05:13,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:13,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082549914] [2021-12-14 19:05:13,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082549914] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:13,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:13,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 19:05:13,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16872471] [2021-12-14 19:05:13,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:13,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 19:05:13,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:13,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 19:05:13,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:13,731 INFO L87 Difference]: Start difference. First operand 3571 states and 5142 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:05:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:27,266 INFO L93 Difference]: Finished difference Result 4940 states and 7647 transitions. [2021-12-14 19:05:27,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 19:05:27,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2021-12-14 19:05:27,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:27,313 INFO L225 Difference]: With dead ends: 4940 [2021-12-14 19:05:27,314 INFO L226 Difference]: Without dead ends: 4938 [2021-12-14 19:05:27,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-12-14 19:05:27,319 INFO L933 BasicCegarLoop]: 2954 mSDtfsCounter, 5580 mSDsluCounter, 8359 mSDsCounter, 0 mSdLazyCounter, 9669 mSolverCounterSat, 4822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6102 SdHoareTripleChecker+Valid, 11313 SdHoareTripleChecker+Invalid, 14491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4822 IncrementalHoareTripleChecker+Valid, 9669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:27,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6102 Valid, 11313 Invalid, 14491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4822 Valid, 9669 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2021-12-14 19:05:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4938 states. [2021-12-14 19:05:27,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4938 to 4626. [2021-12-14 19:05:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4626 states, 3032 states have (on average 1.2519788918205805) internal successors, (3796), 3168 states have internal predecessors, (3796), 1317 states have call successors, (1317), 215 states have call predecessors, (1317), 274 states have return successors, (1940), 1318 states have call predecessors, (1940), 1314 states have call successors, (1940) [2021-12-14 19:05:27,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 7053 transitions. [2021-12-14 19:05:27,771 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 7053 transitions. Word has length 150 [2021-12-14 19:05:27,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:27,772 INFO L470 AbstractCegarLoop]: Abstraction has 4626 states and 7053 transitions. [2021-12-14 19:05:27,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:05:27,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 7053 transitions. [2021-12-14 19:05:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-14 19:05:27,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:27,776 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:27,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 19:05:27,777 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-14 19:05:27,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2143733695, now seen corresponding path program 1 times [2021-12-14 19:05:27,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:27,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59193062] [2021-12-14 19:05:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:27,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:05:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:05:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:05:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:05:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 19:05:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 19:05:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 19:05:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 19:05:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:05:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:05:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:05:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 19:05:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 19:05:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-14 19:05:28,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:28,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59193062] [2021-12-14 19:05:28,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59193062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:28,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:28,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 19:05:28,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6230176] [2021-12-14 19:05:28,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:28,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 19:05:28,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 19:05:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:05:28,135 INFO L87 Difference]: Start difference. First operand 4626 states and 7053 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 19:05:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:42,165 INFO L93 Difference]: Finished difference Result 6343 states and 10298 transitions. [2021-12-14 19:05:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 19:05:42,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 175 [2021-12-14 19:05:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:42,215 INFO L225 Difference]: With dead ends: 6343 [2021-12-14 19:05:42,215 INFO L226 Difference]: Without dead ends: 6341 [2021-12-14 19:05:42,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-12-14 19:05:42,226 INFO L933 BasicCegarLoop]: 4575 mSDtfsCounter, 5610 mSDsluCounter, 11706 mSDsCounter, 0 mSdLazyCounter, 10781 mSolverCounterSat, 5971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6048 SdHoareTripleChecker+Valid, 16281 SdHoareTripleChecker+Invalid, 16752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5971 IncrementalHoareTripleChecker+Valid, 10781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:42,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6048 Valid, 16281 Invalid, 16752 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5971 Valid, 10781 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2021-12-14 19:05:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6341 states. [2021-12-14 19:05:42,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6341 to 4643. [2021-12-14 19:05:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 3042 states have (on average 1.2508218277449046) internal successors, (3805), 3176 states have internal predecessors, (3805), 1320 states have call successors, (1320), 215 states have call predecessors, (1320), 278 states have return successors, (1860), 1327 states have call predecessors, (1860), 1317 states have call successors, (1860) [2021-12-14 19:05:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6985 transitions. [2021-12-14 19:05:42,639 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6985 transitions. Word has length 175 [2021-12-14 19:05:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:42,639 INFO L470 AbstractCegarLoop]: Abstraction has 4643 states and 6985 transitions. [2021-12-14 19:05:42,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 19:05:42,640 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6985 transitions. [2021-12-14 19:05:42,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-14 19:05:42,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:42,646 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:42,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 19:05:42,646 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-12-14 19:05:42,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:42,647 INFO L85 PathProgramCache]: Analyzing trace with hash 610989074, now seen corresponding path program 1 times [2021-12-14 19:05:42,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:42,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282168367] [2021-12-14 19:05:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:42,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 19:05:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:05:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 19:05:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:05:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 19:05:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:05:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 19:05:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 19:05:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 19:05:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 19:05:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:05:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:05:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:05:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 19:05:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 19:05:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 19:05:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 19:05:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-14 19:05:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 19:05:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 19:05:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 19:05:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 19:05:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-14 19:05:43,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:43,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282168367] [2021-12-14 19:05:43,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282168367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:43,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:43,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 19:05:43,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347612842] [2021-12-14 19:05:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:43,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 19:05:43,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:43,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 19:05:43,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 19:05:43,050 INFO L87 Difference]: Start difference. First operand 4643 states and 6985 transitions. Second operand has 7 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-14 19:05:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:49,442 INFO L93 Difference]: Finished difference Result 10615 states and 16692 transitions. [2021-12-14 19:05:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 19:05:49,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 229 [2021-12-14 19:05:49,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:49,490 INFO L225 Difference]: With dead ends: 10615 [2021-12-14 19:05:49,490 INFO L226 Difference]: Without dead ends: 5993 [2021-12-14 19:05:49,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-14 19:05:49,540 INFO L933 BasicCegarLoop]: 2412 mSDtfsCounter, 2663 mSDsluCounter, 5499 mSDsCounter, 0 mSdLazyCounter, 4305 mSolverCounterSat, 3033 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 7911 SdHoareTripleChecker+Invalid, 7338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3033 IncrementalHoareTripleChecker+Valid, 4305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:49,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3100 Valid, 7911 Invalid, 7338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3033 Valid, 4305 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-14 19:05:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states.