./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.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 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 14:19:27,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:19:27,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:19:27,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:19:27,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:19:27,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:19:27,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:19:27,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:19:27,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:19:27,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:19:27,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:19:27,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:19:27,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:19:27,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:19:27,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:19:27,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:19:27,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:19:27,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:19:27,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:19:27,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:19:27,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:19:27,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:19:27,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:19:27,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:19:27,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:19:27,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:19:27,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:19:27,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:19:27,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:19:27,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:19:27,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:19:27,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:19:27,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:19:27,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:19:27,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:19:27,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:19:27,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:19:27,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:19:27,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:19:27,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:19:27,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:19:27,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:19:27,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:19:27,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:19:27,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:19:27,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:19:27,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:19:27,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:19:27,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:19:27,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:19:27,965 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:19:27,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:19:27,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:19:27,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:19:27,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:19:27,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:19:27,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:19:27,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:19:27,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:19:27,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:19:27,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:19:27,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:19:27,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:19:27,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:19:27,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:19:27,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:19:27,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:19:27,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:19:27,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:19:27,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:19:27,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:19:27,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:19:27,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:19:27,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc [2021-12-18 14:19:28,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:19:28,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:19:28,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:19:28,183 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:19:28,183 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:19:28,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2021-12-18 14:19:28,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bbf915b8/47edd7d2e88448c09e8d6d266ca51007/FLAG30eae07dd [2021-12-18 14:19:28,969 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:19:28,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2021-12-18 14:19:29,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bbf915b8/47edd7d2e88448c09e8d6d266ca51007/FLAG30eae07dd [2021-12-18 14:19:29,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bbf915b8/47edd7d2e88448c09e8d6d266ca51007 [2021-12-18 14:19:29,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:19:29,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:19:29,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:19:29,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:19:29,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:19:29,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:19:29" (1/1) ... [2021-12-18 14:19:29,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8e6b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:29, skipping insertion in model container [2021-12-18 14:19:29,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:19:29" (1/1) ... [2021-12-18 14:19:29,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:19:29,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:19:32,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2021-12-18 14:19:32,292 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2021-12-18 14:19:32,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2021-12-18 14:19:32,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2021-12-18 14:19:32,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:19:32,407 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:19:32,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2021-12-18 14:19:32,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2021-12-18 14:19:32,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2021-12-18 14:19:32,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2021-12-18 14:19:32,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:19:32,885 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:19:32,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32 WrapperNode [2021-12-18 14:19:32,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:19:32,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:19:32,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:19:32,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:19:32,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,166 INFO L137 Inliner]: procedures = 559, calls = 2801, calls flagged for inlining = 291, calls inlined = 253, statements flattened = 5819 [2021-12-18 14:19:33,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:19:33,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:19:33,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:19:33,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:19:33,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:19:33,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:19:33,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:19:33,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:19:33,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (1/1) ... [2021-12-18 14:19:33,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:19:33,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:19:33,520 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) [2021-12-18 14:19:33,538 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 [2021-12-18 14:19:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 14:19:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 14:19:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:19:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:19:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 14:19:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 14:19:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 14:19:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 14:19:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:19:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:19:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_80 [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_80 [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 14:19:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-18 14:19:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 14:19:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 14:19:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_62 [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_62 [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 14:19:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 14:19:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2021-12-18 14:19:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-18 14:19:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 14:19:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 14:19:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:19:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2021-12-18 14:19:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rhine_private [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rhine_private [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:19:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-18 14:19:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_68 [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_68 [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rhine_private [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rhine_private [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:19:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 14:19:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 14:19:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2021-12-18 14:19:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2021-12-18 14:19:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_79 [2021-12-18 14:19:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_79 [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-12-18 14:19:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2021-12-18 14:19:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:19:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 14:19:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_63 [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_63 [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_67 [2021-12-18 14:19:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_67 [2021-12-18 14:19:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:19:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 14:19:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2021-12-18 14:19:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:19:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:19:34,337 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:19:34,340 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:19:34,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 14:26:32,968 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 14:26:33,020 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 14:26:33,032 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 14:26:33,033 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-18 14:26:33,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:26:33 BoogieIcfgContainer [2021-12-18 14:26:33,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 14:26:33,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 14:26:33,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 14:26:33,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 14:26:33,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:19:29" (1/3) ... [2021-12-18 14:26:33,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afed007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:26:33, skipping insertion in model container [2021-12-18 14:26:33,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:19:32" (2/3) ... [2021-12-18 14:26:33,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afed007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:26:33, skipping insertion in model container [2021-12-18 14:26:33,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:26:33" (3/3) ... [2021-12-18 14:26:33,043 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2021-12-18 14:26:33,047 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 14:26:33,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 14:26:33,091 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 14:26:33,096 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 [2021-12-18 14:26:33,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 14:26:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 2254 states, 1521 states have (on average 1.2741617357001973) internal successors, (1938), 1570 states have internal predecessors, (1938), 604 states have call successors, (604), 128 states have call predecessors, (604), 127 states have return successors, (595), 582 states have call predecessors, (595), 595 states have call successors, (595) [2021-12-18 14:26:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-18 14:26:33,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:26:33,175 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:26:33,176 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)] === [2021-12-18 14:26:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:26:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1035436214, now seen corresponding path program 1 times [2021-12-18 14:26:33,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:26:33,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873387854] [2021-12-18 14:26:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:26:33,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:26:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:26:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:26:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:26:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:26:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:26:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:26:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:26:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:26:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:26:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:26:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:26:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:26:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:26:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:26:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:26:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 14:26:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:34,918 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 14:26:34,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:26:34,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873387854] [2021-12-18 14:26:34,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873387854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:26:34,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:26:34,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:26:34,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511146756] [2021-12-18 14:26:34,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:26:34,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:26:34,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:26:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:26:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:26:34,967 INFO L87 Difference]: Start difference. First operand has 2254 states, 1521 states have (on average 1.2741617357001973) internal successors, (1938), 1570 states have internal predecessors, (1938), 604 states have call successors, (604), 128 states have call predecessors, (604), 127 states have return successors, (595), 582 states have call predecessors, (595), 595 states have call successors, (595) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 14:26:37,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:26:39,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:26:50,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:26:50,895 INFO L93 Difference]: Finished difference Result 6627 states and 9506 transitions. [2021-12-18 14:26:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:26:50,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2021-12-18 14:26:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:26:50,944 INFO L225 Difference]: With dead ends: 6627 [2021-12-18 14:26:50,945 INFO L226 Difference]: Without dead ends: 4393 [2021-12-18 14:26:50,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:26:50,965 INFO L933 BasicCegarLoop]: 3203 mSDtfsCounter, 3767 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 1824 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 6564 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1824 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-12-18 14:26:50,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4283 Valid, 6564 Invalid, 3881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1824 Valid, 2055 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2021-12-18 14:26:50,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-12-18 14:26:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4293. [2021-12-18 14:26:51,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 2900 states have (on average 1.2582758620689656) internal successors, (3649), 2995 states have internal predecessors, (3649), 1140 states have call successors, (1140), 251 states have call predecessors, (1140), 250 states have return successors, (1136), 1110 states have call predecessors, (1136), 1136 states have call successors, (1136) [2021-12-18 14:26:51,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 5925 transitions. [2021-12-18 14:26:51,223 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 5925 transitions. Word has length 184 [2021-12-18 14:26:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:26:51,224 INFO L470 AbstractCegarLoop]: Abstraction has 4293 states and 5925 transitions. [2021-12-18 14:26:51,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 14:26:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 5925 transitions. [2021-12-18 14:26:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-18 14:26:51,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:26:51,231 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:26:51,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 14:26:51,231 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:26:51,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:26:51,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1674848728, now seen corresponding path program 1 times [2021-12-18 14:26:51,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:26:51,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658709420] [2021-12-18 14:26:51,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:26:51,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:26:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:26:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:26:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:26:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:26:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:26:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:26:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:26:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:26:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:26:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:26:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:26:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:26:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:26:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:26:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:26:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:26:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 14:26:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:26:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 14:26:52,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:26:52,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658709420] [2021-12-18 14:26:52,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658709420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:26:52,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:26:52,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:26:52,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278208548] [2021-12-18 14:26:52,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:26:52,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:26:52,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:26:52,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:26:52,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:26:52,542 INFO L87 Difference]: Start difference. First operand 4293 states and 5925 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 14:26:54,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:26:56,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:27:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:27:08,967 INFO L93 Difference]: Finished difference Result 12269 states and 17057 transitions. [2021-12-18 14:27:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:27:08,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 191 [2021-12-18 14:27:08,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:27:09,029 INFO L225 Difference]: With dead ends: 12269 [2021-12-18 14:27:09,030 INFO L226 Difference]: Without dead ends: 8009 [2021-12-18 14:27:09,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:27:09,054 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 3304 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 1742 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1742 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:27:09,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3758 Valid, 6441 Invalid, 3765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1742 Valid, 2021 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2021-12-18 14:27:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2021-12-18 14:27:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 7796. [2021-12-18 14:27:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 5245 states have (on average 1.257959961868446) internal successors, (6598), 5425 states have internal predecessors, (6598), 2067 states have call successors, (2067), 482 states have call predecessors, (2067), 481 states have return successors, (2067), 2006 states have call predecessors, (2067), 2063 states have call successors, (2067) [2021-12-18 14:27:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 10732 transitions. [2021-12-18 14:27:09,473 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 10732 transitions. Word has length 191 [2021-12-18 14:27:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:27:09,474 INFO L470 AbstractCegarLoop]: Abstraction has 7796 states and 10732 transitions. [2021-12-18 14:27:09,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 14:27:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 10732 transitions. [2021-12-18 14:27:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-18 14:27:09,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:27:09,483 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 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] [2021-12-18 14:27:09,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 14:27:09,484 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:27:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:27:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1110319682, now seen corresponding path program 1 times [2021-12-18 14:27:09,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:27:09,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826346691] [2021-12-18 14:27:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:27:09,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:27:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:27:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:27:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:27:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:27:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:27:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:27:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:27:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:27:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:27:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:27:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:27:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:27:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:27:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:27:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:27:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 14:27:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 14:27:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 14:27:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2021-12-18 14:27:10,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:27:10,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826346691] [2021-12-18 14:27:10,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826346691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:27:10,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:27:10,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:27:10,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171311458] [2021-12-18 14:27:10,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:27:10,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:27:10,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:27:10,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:27:10,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:27:10,639 INFO L87 Difference]: Start difference. First operand 7796 states and 10732 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 14:27:12,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:27:15,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:27:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:27:26,344 INFO L93 Difference]: Finished difference Result 22556 states and 31230 transitions. [2021-12-18 14:27:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:27:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2021-12-18 14:27:26,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:27:26,424 INFO L225 Difference]: With dead ends: 22556 [2021-12-18 14:27:26,425 INFO L226 Difference]: Without dead ends: 14793 [2021-12-18 14:27:26,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:27:26,459 INFO L933 BasicCegarLoop]: 3414 mSDtfsCounter, 3304 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 1642 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 6801 SdHoareTripleChecker+Invalid, 3749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1642 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:27:26,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 6801 Invalid, 3749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1642 Valid, 2105 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 14:27:26,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14793 states. [2021-12-18 14:27:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14793 to 14408. [2021-12-18 14:27:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14408 states, 9649 states have (on average 1.2517359311845788) internal successors, (12078), 9979 states have internal predecessors, (12078), 3819 states have call successors, (3819), 940 states have call predecessors, (3819), 937 states have return successors, (3819), 3704 states have call predecessors, (3819), 3815 states have call successors, (3819) [2021-12-18 14:27:26,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14408 states to 14408 states and 19716 transitions. [2021-12-18 14:27:26,968 INFO L78 Accepts]: Start accepts. Automaton has 14408 states and 19716 transitions. Word has length 214 [2021-12-18 14:27:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:27:26,970 INFO L470 AbstractCegarLoop]: Abstraction has 14408 states and 19716 transitions. [2021-12-18 14:27:26,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 14:27:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 14408 states and 19716 transitions. [2021-12-18 14:27:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-18 14:27:26,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:27:26,974 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 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] [2021-12-18 14:27:26,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 14:27:26,975 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:27:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:27:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash -455281072, now seen corresponding path program 1 times [2021-12-18 14:27:26,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:27:26,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925550113] [2021-12-18 14:27:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:27:26,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:27:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:27:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:27:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:27:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:27:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:27:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:27:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:27:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:27:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:27:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:27:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:27:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:27:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:27:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:27:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:27:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:27:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:27:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:27:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:27:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:27:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2021-12-18 14:27:28,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:27:28,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925550113] [2021-12-18 14:27:28,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925550113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:27:28,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:27:28,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 14:27:28,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563300292] [2021-12-18 14:27:28,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:27:28,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 14:27:28,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:27:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 14:27:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 14:27:28,267 INFO L87 Difference]: Start difference. First operand 14408 states and 19716 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 14:27:30,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:27:32,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:28:01,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:28:01,856 INFO L93 Difference]: Finished difference Result 37017 states and 50747 transitions. [2021-12-18 14:28:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 14:28:01,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 209 [2021-12-18 14:28:01,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:28:01,950 INFO L225 Difference]: With dead ends: 37017 [2021-12-18 14:28:01,950 INFO L226 Difference]: Without dead ends: 22642 [2021-12-18 14:28:02,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-18 14:28:02,007 INFO L933 BasicCegarLoop]: 3819 mSDtfsCounter, 14209 mSDsluCounter, 4916 mSDsCounter, 0 mSdLazyCounter, 5580 mSolverCounterSat, 8260 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15154 SdHoareTripleChecker+Valid, 8735 SdHoareTripleChecker+Invalid, 13842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8260 IncrementalHoareTripleChecker+Valid, 5580 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:28:02,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15154 Valid, 8735 Invalid, 13842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8260 Valid, 5580 Invalid, 2 Unknown, 0 Unchecked, 32.4s Time] [2021-12-18 14:28:02,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22642 states. [2021-12-18 14:28:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22642 to 21954. [2021-12-18 14:28:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21954 states, 14642 states have (on average 1.243136183581478) internal successors, (18202), 15151 states have internal predecessors, (18202), 5783 states have call successors, (5783), 1536 states have call predecessors, (5783), 1526 states have return successors, (5785), 5575 states have call predecessors, (5785), 5779 states have call successors, (5785) [2021-12-18 14:28:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21954 states to 21954 states and 29770 transitions. [2021-12-18 14:28:02,729 INFO L78 Accepts]: Start accepts. Automaton has 21954 states and 29770 transitions. Word has length 209 [2021-12-18 14:28:02,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:28:02,732 INFO L470 AbstractCegarLoop]: Abstraction has 21954 states and 29770 transitions. [2021-12-18 14:28:02,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 14:28:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 21954 states and 29770 transitions. [2021-12-18 14:28:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-18 14:28:02,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:28:02,739 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:28:02,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 14:28:02,740 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:28:02,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:28:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash 601744054, now seen corresponding path program 1 times [2021-12-18 14:28:02,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:28:02,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892514847] [2021-12-18 14:28:02,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:28:02,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:28:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:28:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:28:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:28:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:28:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:28:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:28:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:28:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:28:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:28:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:28:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:28:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:28:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:28:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:28:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:28:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:28:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 14:28:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 14:28:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 14:28:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:28:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-12-18 14:28:03,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:28:03,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892514847] [2021-12-18 14:28:03,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892514847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:28:03,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:28:03,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:28:03,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576690627] [2021-12-18 14:28:03,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:28:03,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:28:03,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:28:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:28:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:28:03,644 INFO L87 Difference]: Start difference. First operand 21954 states and 29770 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 14:28:05,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:28:08,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:28:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:28:19,672 INFO L93 Difference]: Finished difference Result 61984 states and 84541 transitions. [2021-12-18 14:28:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:28:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2021-12-18 14:28:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:28:19,965 INFO L225 Difference]: With dead ends: 61984 [2021-12-18 14:28:19,965 INFO L226 Difference]: Without dead ends: 40063 [2021-12-18 14:28:20,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:28:20,026 INFO L933 BasicCegarLoop]: 3728 mSDtfsCounter, 3572 mSDsluCounter, 3633 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 1706 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1706 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:28:20,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4083 Valid, 7361 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1706 Valid, 2080 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 14:28:20,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40063 states. [2021-12-18 14:28:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40063 to 38916. [2021-12-18 14:28:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38916 states, 25995 states have (on average 1.2405462588959415) internal successors, (32248), 26932 states have internal predecessors, (32248), 10215 states have call successors, (10215), 2722 states have call predecessors, (10215), 2703 states have return successors, (10223), 9821 states have call predecessors, (10223), 10211 states have call successors, (10223) [2021-12-18 14:28:21,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38916 states to 38916 states and 52686 transitions. [2021-12-18 14:28:21,327 INFO L78 Accepts]: Start accepts. Automaton has 38916 states and 52686 transitions. Word has length 239 [2021-12-18 14:28:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:28:21,328 INFO L470 AbstractCegarLoop]: Abstraction has 38916 states and 52686 transitions. [2021-12-18 14:28:21,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 14:28:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 38916 states and 52686 transitions. [2021-12-18 14:28:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-18 14:28:21,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:28:21,332 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:28:21,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 14:28:21,333 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)] === [2021-12-18 14:28:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:28:21,333 INFO L85 PathProgramCache]: Analyzing trace with hash 756415631, now seen corresponding path program 1 times [2021-12-18 14:28:21,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:28:21,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662706485] [2021-12-18 14:28:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:28:21,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:28:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:28:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:28:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:28:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:28:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:28:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:28:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:28:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:28:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:28:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:28:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:28:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:28:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:28:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:28:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:28:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:28:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:28:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:28:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:28:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:28:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:28:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:28:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-18 14:28:22,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:28:22,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662706485] [2021-12-18 14:28:22,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662706485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:28:22,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:28:22,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:28:22,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725692642] [2021-12-18 14:28:22,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:28:22,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:28:22,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:28:22,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:28:22,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:28:22,325 INFO L87 Difference]: Start difference. First operand 38916 states and 52686 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 14:28:24,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:28:26,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:28:40,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:28:40,520 INFO L93 Difference]: Finished difference Result 115163 states and 156896 transitions. [2021-12-18 14:28:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:28:40,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 245 [2021-12-18 14:28:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:28:41,213 INFO L225 Difference]: With dead ends: 115163 [2021-12-18 14:28:41,213 INFO L226 Difference]: Without dead ends: 77294 [2021-12-18 14:28:41,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:28:41,330 INFO L933 BasicCegarLoop]: 4709 mSDtfsCounter, 3174 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 1429 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3682 SdHoareTripleChecker+Valid, 8736 SdHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1429 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:28:41,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3682 Valid, 8736 Invalid, 3494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1429 Valid, 2063 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2021-12-18 14:28:41,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77294 states. [2021-12-18 14:28:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77294 to 75136. [2021-12-18 14:28:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75136 states, 50235 states have (on average 1.2395341893102418) internal successors, (62268), 51972 states have internal predecessors, (62268), 19657 states have call successors, (19657), 5262 states have call predecessors, (19657), 5241 states have return successors, (19677), 19005 states have call predecessors, (19677), 19653 states have call successors, (19677) [2021-12-18 14:28:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75136 states to 75136 states and 101602 transitions. [2021-12-18 14:28:43,890 INFO L78 Accepts]: Start accepts. Automaton has 75136 states and 101602 transitions. Word has length 245 [2021-12-18 14:28:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:28:43,891 INFO L470 AbstractCegarLoop]: Abstraction has 75136 states and 101602 transitions. [2021-12-18 14:28:43,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 14:28:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 75136 states and 101602 transitions. [2021-12-18 14:28:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-18 14:28:43,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:28:43,895 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:28:43,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 14:28:43,896 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)] === [2021-12-18 14:28:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:28:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1615323631, now seen corresponding path program 1 times [2021-12-18 14:28:43,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:28:43,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997961164] [2021-12-18 14:28:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:28:43,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:28:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:28:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:28:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:28:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:28:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:28:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:28:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:28:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:28:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:28:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:28:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:28:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:28:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:28:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:28:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:28:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:28:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:28:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:28:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:28:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:28:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:28:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:28:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:28:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:28:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-12-18 14:28:45,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:28:45,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997961164] [2021-12-18 14:28:45,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997961164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:28:45,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:28:45,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:28:45,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257728849] [2021-12-18 14:28:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:28:45,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:28:45,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:28:45,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:28:45,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:28:45,803 INFO L87 Difference]: Start difference. First operand 75136 states and 101602 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 14:28:47,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:29:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:29:00,128 INFO L93 Difference]: Finished difference Result 78066 states and 106191 transitions. [2021-12-18 14:29:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 14:29:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 245 [2021-12-18 14:29:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:29:00,555 INFO L225 Difference]: With dead ends: 78066 [2021-12-18 14:29:00,555 INFO L226 Difference]: Without dead ends: 78064 [2021-12-18 14:29:00,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:29:00,587 INFO L933 BasicCegarLoop]: 2819 mSDtfsCounter, 3091 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 1259 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 8413 SdHoareTripleChecker+Invalid, 3645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-12-18 14:29:00,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3409 Valid, 8413 Invalid, 3645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1259 Valid, 2385 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2021-12-18 14:29:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78064 states. [2021-12-18 14:29:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78064 to 75908. [2021-12-18 14:29:02,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75908 states, 50742 states have (on average 1.238559772969138) internal successors, (62847), 52527 states have internal predecessors, (62847), 19753 states have call successors, (19753), 5431 states have call predecessors, (19753), 5410 states have return successors, (19773), 19101 states have call predecessors, (19773), 19749 states have call successors, (19773) [2021-12-18 14:29:03,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75908 states to 75908 states and 102373 transitions. [2021-12-18 14:29:03,270 INFO L78 Accepts]: Start accepts. Automaton has 75908 states and 102373 transitions. Word has length 245 [2021-12-18 14:29:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:29:03,270 INFO L470 AbstractCegarLoop]: Abstraction has 75908 states and 102373 transitions. [2021-12-18 14:29:03,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 14:29:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 75908 states and 102373 transitions. [2021-12-18 14:29:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 14:29:03,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:29:03,277 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:29:03,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 14:29:03,277 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)] === [2021-12-18 14:29:03,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:29:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1092338553, now seen corresponding path program 1 times [2021-12-18 14:29:03,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:29:03,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320117185] [2021-12-18 14:29:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:29:03,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:29:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:29:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:29:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:29:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:29:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:29:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:29:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:29:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:29:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:29:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:29:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:29:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:29:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:29:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:29:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:29:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:29:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:29:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:29:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:29:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:29:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:29:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:29:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 14:29:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-12-18 14:29:04,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:29:04,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320117185] [2021-12-18 14:29:04,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320117185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:29:04,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:29:04,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:29:04,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379192213] [2021-12-18 14:29:04,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:29:04,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:29:04,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:29:04,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:29:04,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:29:04,620 INFO L87 Difference]: Start difference. First operand 75908 states and 102373 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 14:29:06,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:29:18,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:29:18,665 INFO L93 Difference]: Finished difference Result 78068 states and 106193 transitions. [2021-12-18 14:29:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:29:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 250 [2021-12-18 14:29:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:29:18,966 INFO L225 Difference]: With dead ends: 78068 [2021-12-18 14:29:18,966 INFO L226 Difference]: Without dead ends: 78066 [2021-12-18 14:29:19,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:29:19,007 INFO L933 BasicCegarLoop]: 2823 mSDtfsCounter, 3064 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1262 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:29:19,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3375 Valid, 8407 Invalid, 3602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1262 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2021-12-18 14:29:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78066 states. [2021-12-18 14:29:21,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78066 to 75912. [2021-12-18 14:29:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75912 states, 50745 states have (on average 1.238545669524091) internal successors, (62850), 52530 states have internal predecessors, (62850), 19753 states have call successors, (19753), 5432 states have call predecessors, (19753), 5411 states have return successors, (19773), 19101 states have call predecessors, (19773), 19749 states have call successors, (19773) [2021-12-18 14:29:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75912 states to 75912 states and 102376 transitions. [2021-12-18 14:29:21,501 INFO L78 Accepts]: Start accepts. Automaton has 75912 states and 102376 transitions. Word has length 250 [2021-12-18 14:29:21,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:29:21,502 INFO L470 AbstractCegarLoop]: Abstraction has 75912 states and 102376 transitions. [2021-12-18 14:29:21,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 14:29:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 75912 states and 102376 transitions. [2021-12-18 14:29:21,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-18 14:29:21,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:29:21,519 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:29:21,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 14:29:21,520 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)] === [2021-12-18 14:29:21,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:29:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 907267985, now seen corresponding path program 1 times [2021-12-18 14:29:21,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:29:21,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763439246] [2021-12-18 14:29:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:29:21,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:29:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:29:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:29:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:29:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:29:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:29:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:29:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:29:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:29:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:29:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:29:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:29:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:29:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:29:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:29:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:29:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:29:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:29:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:29:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:29:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:29:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:29:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:29:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 14:29:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 14:29:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-12-18 14:29:22,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:29:22,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763439246] [2021-12-18 14:29:22,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763439246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:29:22,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:29:22,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:29:22,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516357404] [2021-12-18 14:29:22,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:29:22,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:29:22,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:29:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:29:22,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:29:22,964 INFO L87 Difference]: Start difference. First operand 75912 states and 102376 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 14:29:25,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:29:37,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:29:37,125 INFO L93 Difference]: Finished difference Result 78072 states and 106196 transitions. [2021-12-18 14:29:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:29:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 255 [2021-12-18 14:29:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:29:37,512 INFO L225 Difference]: With dead ends: 78072 [2021-12-18 14:29:37,512 INFO L226 Difference]: Without dead ends: 78070 [2021-12-18 14:29:37,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:29:37,541 INFO L933 BasicCegarLoop]: 2829 mSDtfsCounter, 3057 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1263 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 8425 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:29:37,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3368 Valid, 8425 Invalid, 3603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1263 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2021-12-18 14:29:37,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78070 states. [2021-12-18 14:29:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78070 to 75916. [2021-12-18 14:29:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 50748 states have (on average 1.238531567746512) internal successors, (62853), 52533 states have internal predecessors, (62853), 19753 states have call successors, (19753), 5433 states have call predecessors, (19753), 5412 states have return successors, (19773), 19101 states have call predecessors, (19773), 19749 states have call successors, (19773) [2021-12-18 14:29:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 102379 transitions. [2021-12-18 14:29:39,820 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 102379 transitions. Word has length 255 [2021-12-18 14:29:39,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:29:39,820 INFO L470 AbstractCegarLoop]: Abstraction has 75916 states and 102379 transitions. [2021-12-18 14:29:39,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 14:29:39,821 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 102379 transitions. [2021-12-18 14:29:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-18 14:29:39,826 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:29:39,826 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:29:39,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 14:29:39,827 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)] === [2021-12-18 14:29:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:29:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash -85820363, now seen corresponding path program 1 times [2021-12-18 14:29:39,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:29:39,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642500416] [2021-12-18 14:29:39,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:29:39,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:29:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:29:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:29:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:29:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:29:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:29:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:29:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:29:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:29:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:29:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:29:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:29:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:29:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:29:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:29:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:29:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:29:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:29:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:29:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:29:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:29:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:29:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:29:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 14:29:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 14:29:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 14:29:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 14:29:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 14:29:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 14:29:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:29:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-12-18 14:29:41,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:29:41,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642500416] [2021-12-18 14:29:41,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642500416] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:29:41,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:29:41,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:29:41,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84743065] [2021-12-18 14:29:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:29:41,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:29:41,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:29:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:29:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:29:41,110 INFO L87 Difference]: Start difference. First operand 75916 states and 102379 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 14:29:43,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:29:45,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:29:47,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:30:12,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:30:12,370 INFO L93 Difference]: Finished difference Result 190657 states and 258621 transitions. [2021-12-18 14:30:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 14:30:12,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 269 [2021-12-18 14:30:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:30:13,000 INFO L225 Difference]: With dead ends: 190657 [2021-12-18 14:30:13,001 INFO L226 Difference]: Without dead ends: 115788 [2021-12-18 14:30:13,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:30:13,199 INFO L933 BasicCegarLoop]: 5210 mSDtfsCounter, 3781 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 3037 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 10121 SdHoareTripleChecker+Invalid, 7057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3037 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:30:13,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 10121 Invalid, 7057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3037 Valid, 4017 Invalid, 3 Unknown, 0 Unchecked, 26.9s Time] [2021-12-18 14:30:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115788 states. [2021-12-18 14:30:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115788 to 112544. [2021-12-18 14:30:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112544 states, 75264 states have (on average 1.238108524659864) internal successors, (93185), 77873 states have internal predecessors, (93185), 29243 states have call successors, (29243), 8057 states have call predecessors, (29243), 8034 states have return successors, (29275), 28333 states have call predecessors, (29275), 29239 states have call successors, (29275) [2021-12-18 14:30:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112544 states to 112544 states and 151703 transitions. [2021-12-18 14:30:17,722 INFO L78 Accepts]: Start accepts. Automaton has 112544 states and 151703 transitions. Word has length 269 [2021-12-18 14:30:17,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:30:17,723 INFO L470 AbstractCegarLoop]: Abstraction has 112544 states and 151703 transitions. [2021-12-18 14:30:17,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 14:30:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand 112544 states and 151703 transitions. [2021-12-18 14:30:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-18 14:30:17,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:30:17,728 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:30:17,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 14:30:17,729 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)] === [2021-12-18 14:30:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:30:17,729 INFO L85 PathProgramCache]: Analyzing trace with hash -841635193, now seen corresponding path program 1 times [2021-12-18 14:30:17,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:30:17,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737611672] [2021-12-18 14:30:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:30:17,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:30:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:30:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:30:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:30:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:30:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:30:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:30:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:30:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:30:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:30:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:30:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:30:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:30:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:30:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:30:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:30:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:30:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:30:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:30:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:30:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:30:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:30:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:30:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 14:30:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 14:30:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 14:30:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-12-18 14:30:18,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:30:18,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737611672] [2021-12-18 14:30:18,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737611672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:30:18,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:30:18,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:30:18,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585902227] [2021-12-18 14:30:18,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:30:18,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:30:18,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:30:18,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:30:18,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:30:18,647 INFO L87 Difference]: Start difference. First operand 112544 states and 151703 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 14:30:20,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:30:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:30:34,906 INFO L93 Difference]: Finished difference Result 115760 states and 157393 transitions. [2021-12-18 14:30:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:30:34,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 260 [2021-12-18 14:30:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:30:35,376 INFO L225 Difference]: With dead ends: 115760 [2021-12-18 14:30:35,377 INFO L226 Difference]: Without dead ends: 115758 [2021-12-18 14:30:35,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:30:35,442 INFO L933 BasicCegarLoop]: 2821 mSDtfsCounter, 3064 mSDsluCounter, 5580 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1264 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 3604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:30:35,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3375 Valid, 8401 Invalid, 3604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1264 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2021-12-18 14:30:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115758 states. [2021-12-18 14:30:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115758 to 112548. [2021-12-18 14:30:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112548 states, 75267 states have (on average 1.238099034105252) internal successors, (93188), 77876 states have internal predecessors, (93188), 29243 states have call successors, (29243), 8058 states have call predecessors, (29243), 8035 states have return successors, (29275), 28333 states have call predecessors, (29275), 29239 states have call successors, (29275) [2021-12-18 14:30:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112548 states to 112548 states and 151706 transitions. [2021-12-18 14:30:40,301 INFO L78 Accepts]: Start accepts. Automaton has 112548 states and 151706 transitions. Word has length 260 [2021-12-18 14:30:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:30:40,301 INFO L470 AbstractCegarLoop]: Abstraction has 112548 states and 151706 transitions. [2021-12-18 14:30:40,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 14:30:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 112548 states and 151706 transitions. [2021-12-18 14:30:40,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-18 14:30:40,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:30:40,311 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:30:40,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 14:30:40,312 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)] === [2021-12-18 14:30:40,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:30:40,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1961799407, now seen corresponding path program 1 times [2021-12-18 14:30:40,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:30:40,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74093209] [2021-12-18 14:30:40,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:30:40,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:30:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:30:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:30:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:30:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:30:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:30:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:30:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:30:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:30:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:30:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:30:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:30:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:30:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:30:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:30:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:30:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 14:30:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:30:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:30:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:30:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:30:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:30:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 14:30:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:30:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 14:30:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 14:30:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 14:30:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:30:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:30:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2021-12-18 14:30:41,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:30:41,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74093209] [2021-12-18 14:30:41,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74093209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:30:41,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:30:41,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:30:41,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623595515] [2021-12-18 14:30:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:30:41,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:30:41,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:30:41,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:30:41,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:30:41,438 INFO L87 Difference]: Start difference. First operand 112548 states and 151706 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 14:30:43,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:30:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:30:57,389 INFO L93 Difference]: Finished difference Result 115764 states and 157396 transitions. [2021-12-18 14:30:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:30:57,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 265 [2021-12-18 14:30:57,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:30:57,825 INFO L225 Difference]: With dead ends: 115764 [2021-12-18 14:30:57,825 INFO L226 Difference]: Without dead ends: 115762 [2021-12-18 14:30:57,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:30:57,883 INFO L933 BasicCegarLoop]: 2822 mSDtfsCounter, 3064 mSDsluCounter, 5581 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1259 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3376 SdHoareTripleChecker+Valid, 8403 SdHoareTripleChecker+Invalid, 3599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-12-18 14:30:57,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3376 Valid, 8403 Invalid, 3599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1259 Valid, 2339 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2021-12-18 14:30:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115762 states. [2021-12-18 14:31:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115762 to 112552. [2021-12-18 14:31:02,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112552 states, 75270 states have (on average 1.238089544307161) internal successors, (93191), 77879 states have internal predecessors, (93191), 29243 states have call successors, (29243), 8059 states have call predecessors, (29243), 8036 states have return successors, (29275), 28333 states have call predecessors, (29275), 29239 states have call successors, (29275) [2021-12-18 14:31:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112552 states to 112552 states and 151709 transitions. [2021-12-18 14:31:02,583 INFO L78 Accepts]: Start accepts. Automaton has 112552 states and 151709 transitions. Word has length 265 [2021-12-18 14:31:02,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:31:02,583 INFO L470 AbstractCegarLoop]: Abstraction has 112552 states and 151709 transitions. [2021-12-18 14:31:02,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 14:31:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 112552 states and 151709 transitions. [2021-12-18 14:31:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-12-18 14:31:02,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:31:02,590 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:31:02,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 14:31:02,590 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)] === [2021-12-18 14:31:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:31:02,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1120106824, now seen corresponding path program 1 times [2021-12-18 14:31:02,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:31:02,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777504441] [2021-12-18 14:31:02,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:31:02,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:31:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:31:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:31:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:31:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:31:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:31:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:31:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:31:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:31:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:31:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:31:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:31:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:31:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:31:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:31:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:31:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 14:31:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 14:31:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 14:31:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 14:31:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:31:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:31:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 14:31:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-18 14:31:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 14:31:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 14:31:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:31:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 14:31:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 14:31:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 14:31:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 14:31:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:31:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:31:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-12-18 14:31:03,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:31:03,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777504441] [2021-12-18 14:31:03,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777504441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:31:03,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:31:03,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:31:03,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084780103] [2021-12-18 14:31:03,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:31:03,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:31:03,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:31:03,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:31:03,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:31:03,748 INFO L87 Difference]: Start difference. First operand 112552 states and 151709 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (41), 4 states have call predecessors, (41), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 14:31:05,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:31:08,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:31:10,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:31:38,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:31:38,179 INFO L93 Difference]: Finished difference Result 353227 states and 484628 transitions. [2021-12-18 14:31:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 14:31:38,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (41), 4 states have call predecessors, (41), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 297 [2021-12-18 14:31:38,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted.