./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.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 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 19:04:17,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 19:04:17,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 19:04:17,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 19:04:17,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 19:04:17,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 19:04:17,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 19:04:17,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 19:04:17,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 19:04:17,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 19:04:17,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 19:04:17,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 19:04:17,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 19:04:17,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 19:04:17,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 19:04:17,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 19:04:17,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 19:04:17,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 19:04:17,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 19:04:17,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 19:04:17,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 19:04:17,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 19:04:17,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 19:04:17,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 19:04:17,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 19:04:17,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 19:04:17,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 19:04:17,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 19:04:17,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 19:04:17,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 19:04:17,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 19:04:17,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 19:04:17,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 19:04:17,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 19:04:17,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 19:04:17,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 19:04:17,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 19:04:17,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 19:04:17,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 19:04:17,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 19:04:17,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 19:04:17,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 19:04:17,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 19:04:17,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 19:04:17,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 19:04:17,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 19:04:17,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 19:04:17,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 19:04:17,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 19:04:17,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 19:04:17,919 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 19:04:17,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 19:04:17,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 19:04:17,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 19:04:17,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 19:04:17,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 19:04:17,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 19:04:17,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 19:04:17,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 19:04:17,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 19:04:17,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 19:04:17,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 19:04:17,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 19:04:17,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:04:17,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 19:04:17,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 19:04:17,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 19:04:17,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 19:04:17,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 19:04:17,923 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 19:04:17,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 19:04:17,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 19:04:17,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 19:04:17,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2021-12-14 19:04:18,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 19:04:18,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 19:04:18,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 19:04:18,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 19:04:18,190 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 19:04:18,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-12-14 19:04:18,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c202ffe27/b9f9af6153c14321ad879cee4a1be711/FLAGe821a9798 [2021-12-14 19:04:19,122 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 19:04:19,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-12-14 19:04:19,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c202ffe27/b9f9af6153c14321ad879cee4a1be711/FLAGe821a9798 [2021-12-14 19:04:19,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c202ffe27/b9f9af6153c14321ad879cee4a1be711 [2021-12-14 19:04:19,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 19:04:19,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 19:04:19,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 19:04:19,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 19:04:19,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 19:04:19,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:19" (1/1) ... [2021-12-14 19:04:19,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f1611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:19, skipping insertion in model container [2021-12-14 19:04:19,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:19" (1/1) ... [2021-12-14 19:04:19,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 19:04:19,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 19:04:22,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2021-12-14 19:04:22,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2021-12-14 19:04:22,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2021-12-14 19:04:22,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2021-12-14 19:04:22,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:04:22,704 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 19:04:23,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2021-12-14 19:04:23,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2021-12-14 19:04:23,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2021-12-14 19:04:23,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2021-12-14 19:04:23,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:04:23,151 INFO L208 MainTranslator]: Completed translation [2021-12-14 19:04:23,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23 WrapperNode [2021-12-14 19:04:23,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 19:04:23,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 19:04:23,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 19:04:23,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 19:04:23,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,526 INFO L137 Inliner]: procedures = 526, calls = 4106, calls flagged for inlining = 232, calls inlined = 215, statements flattened = 8429 [2021-12-14 19:04:23,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 19:04:23,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 19:04:23,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 19:04:23,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 19:04:23,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 19:04:23,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 19:04:23,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 19:04:23,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 19:04:23,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (1/1) ... [2021-12-14 19:04:23,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:04:23,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 19:04:24,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 19:04:24,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 19:04:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-12-14 19:04:24,135 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-12-14 19:04:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 19:04:24,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 19:04:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 19:04:24,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 19:04:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 19:04:24,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 19:04:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-12-14 19:04:24,137 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-12-14 19:04:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-12-14 19:04:24,137 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-12-14 19:04:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-14 19:04:24,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-14 19:04:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-12-14 19:04:24,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-12-14 19:04:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 19:04:24,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 19:04:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-12-14 19:04:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-12-14 19:04:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-12-14 19:04:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-12-14 19:04:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-12-14 19:04:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-12-14 19:04:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 19:04:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 19:04:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-12-14 19:04:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-12-14 19:04:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-12-14 19:04:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-12-14 19:04:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 19:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 19:04:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-12-14 19:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-12-14 19:04:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-12-14 19:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-12-14 19:04:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-12-14 19:04:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-12-14 19:04:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-14 19:04:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-14 19:04:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-12-14 19:04:24,171 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-12-14 19:04:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-14 19:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-14 19:04:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 19:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 19:04:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-12-14 19:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-12-14 19:04:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-12-14 19:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-12-14 19:04:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 19:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 19:04:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 19:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 19:04:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-12-14 19:04:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-12-14 19:04:24,176 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-12-14 19:04:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 19:04:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-14 19:04:24,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-14 19:04:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-14 19:04:24,177 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-14 19:04:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-14 19:04:24,177 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-14 19:04:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-12-14 19:04:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-12-14 19:04:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 19:04:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 19:04:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 19:04:24,182 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 19:04:24,182 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 19:04:24,182 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-12-14 19:04:24,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-12-14 19:04:24,182 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-12-14 19:04:24,182 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-12-14 19:04:24,182 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 19:04:24,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 19:04:24,182 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 19:04:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 19:04:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-14 19:04:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-14 19:04:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 19:04:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 19:04:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 19:04:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 19:04:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 19:04:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 19:04:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 19:04:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 19:04:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 19:04:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 19:04:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 19:04:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 19:04:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-12-14 19:04:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-12-14 19:04:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 19:04:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 19:04:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-12-14 19:04:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-12-14 19:04:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 19:04:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 19:04:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 19:04:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 19:04:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-12-14 19:04:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-12-14 19:04:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 19:04:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 19:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-14 19:04:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-14 19:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-12-14 19:04:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-12-14 19:04:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 19:04:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-12-14 19:04:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-12-14 19:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 19:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-12-14 19:04:24,204 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-12-14 19:04:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 19:04:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 19:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 19:04:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 19:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 19:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 19:04:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 19:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-12-14 19:04:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-12-14 19:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-14 19:04:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-14 19:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 19:04:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 19:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-12-14 19:04:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-12-14 19:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-12-14 19:04:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-12-14 19:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-12-14 19:04:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-12-14 19:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-14 19:04:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-14 19:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-12-14 19:04:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-12-14 19:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 19:04:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 19:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-12-14 19:04:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-12-14 19:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 19:04:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 19:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-14 19:04:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-14 19:04:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-12-14 19:04:24,227 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-12-14 19:04:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-12-14 19:04:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-12-14 19:04:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 19:04:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 19:04:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-12-14 19:04:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-12-14 19:04:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-14 19:04:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-14 19:04:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-12-14 19:04:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-12-14 19:04:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 19:04:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 19:04:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 19:04:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 19:04:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-12-14 19:04:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-12-14 19:04:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 19:04:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 19:04:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-14 19:04:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-14 19:04:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-12-14 19:04:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-12-14 19:04:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-12-14 19:04:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-12-14 19:04:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 19:04:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 19:04:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-12-14 19:04:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-12-14 19:04:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-12-14 19:04:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-12-14 19:04:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-12-14 19:04:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-12-14 19:04:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-12-14 19:04:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-12-14 19:04:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-12-14 19:04:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-12-14 19:04:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 19:04:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 19:04:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-12-14 19:04:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-12-14 19:04:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 19:04:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 19:04:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-12-14 19:04:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-12-14 19:04:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-14 19:04:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-14 19:04:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-12-14 19:04:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-12-14 19:04:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-12-14 19:04:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-12-14 19:04:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 19:04:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 19:04:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-12-14 19:04:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-12-14 19:04:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 19:04:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-12-14 19:04:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-12-14 19:04:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-12-14 19:04:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-12-14 19:04:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-12-14 19:04:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-12-14 19:04:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-12-14 19:04:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-12-14 19:04:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 19:04:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-12-14 19:04:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-12-14 19:04:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-12-14 19:04:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-12-14 19:04:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-12-14 19:04:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-12-14 19:04:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 19:04:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 19:04:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 19:04:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-12-14 19:04:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-12-14 19:04:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 19:04:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 19:04:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-14 19:04:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-14 19:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-12-14 19:04:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-12-14 19:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-12-14 19:04:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-12-14 19:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 19:04:24,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 19:04:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-14 19:04:24,250 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-14 19:04:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-14 19:04:24,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-14 19:04:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-12-14 19:04:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-12-14 19:04:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 19:04:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 19:04:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-14 19:04:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-14 19:04:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-12-14 19:04:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-12-14 19:04:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-12-14 19:04:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-12-14 19:04:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-12-14 19:04:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-12-14 19:04:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-12-14 19:04:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-12-14 19:04:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 19:04:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 19:04:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 19:04:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 19:04:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 19:04:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 19:04:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-12-14 19:04:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-12-14 19:04:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 19:04:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 19:04:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2021-12-14 19:04:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2021-12-14 19:04:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-12-14 19:04:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-12-14 19:04:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 19:04:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-12-14 19:04:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-12-14 19:04:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 19:04:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 19:04:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-12-14 19:04:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-12-14 19:04:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 19:04:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 19:04:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-12-14 19:04:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-12-14 19:04:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 19:04:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 19:04:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-12-14 19:04:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-12-14 19:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-12-14 19:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-12-14 19:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-12-14 19:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-12-14 19:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-12-14 19:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-12-14 19:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 19:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 19:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-12-14 19:04:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-12-14 19:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-12-14 19:04:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-12-14 19:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-12-14 19:04:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-12-14 19:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-12-14 19:04:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-12-14 19:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-12-14 19:04:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-12-14 19:04:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-12-14 19:04:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-12-14 19:04:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-14 19:04:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-14 19:04:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-12-14 19:04:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-12-14 19:04:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-12-14 19:04:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-12-14 19:04:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-14 19:04:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-14 19:04:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-12-14 19:04:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-12-14 19:04:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-12-14 19:04:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-12-14 19:04:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-12-14 19:04:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-12-14 19:04:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 19:04:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 19:04:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 19:04:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-14 19:04:25,285 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 19:04:25,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 19:04:25,593 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 19:04:36,679 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 19:04:36,702 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 19:04:36,702 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-12-14 19:04:36,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:36 BoogieIcfgContainer [2021-12-14 19:04:36,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 19:04:36,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 19:04:36,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 19:04:36,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 19:04:36,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:04:19" (1/3) ... [2021-12-14 19:04:36,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a23367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:36, skipping insertion in model container [2021-12-14 19:04:36,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:23" (2/3) ... [2021-12-14 19:04:36,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a23367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:36, skipping insertion in model container [2021-12-14 19:04:36,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:36" (3/3) ... [2021-12-14 19:04:36,712 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-12-14 19:04:36,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 19:04:36,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 19:04:36,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 19:04:36,769 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 19:04:36,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 19:04:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 3798 states, 2688 states have (on average 1.3530505952380953) internal successors, (3637), 2765 states have internal predecessors, (3637), 972 states have call successors, (972), 151 states have call predecessors, (972), 150 states have return successors, (963), 949 states have call predecessors, (963), 963 states have call successors, (963) [2021-12-14 19:04:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-14 19:04:36,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:36,842 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:36,843 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:36,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1013294436, now seen corresponding path program 1 times [2021-12-14 19:04:36,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:36,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373392382] [2021-12-14 19:04:36,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:36,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 19:04:37,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:37,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373392382] [2021-12-14 19:04:37,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373392382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:37,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:37,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:37,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429250086] [2021-12-14 19:04:37,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:37,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:37,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:37,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:37,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:37,532 INFO L87 Difference]: Start difference. First operand has 3798 states, 2688 states have (on average 1.3530505952380953) internal successors, (3637), 2765 states have internal predecessors, (3637), 972 states have call successors, (972), 151 states have call predecessors, (972), 150 states have return successors, (963), 949 states have call predecessors, (963), 963 states have call successors, (963) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-14 19:04:37,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:37,983 INFO L93 Difference]: Finished difference Result 7523 states and 11247 transitions. [2021-12-14 19:04:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:37,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2021-12-14 19:04:37,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:38,042 INFO L225 Difference]: With dead ends: 7523 [2021-12-14 19:04:38,043 INFO L226 Difference]: Without dead ends: 3736 [2021-12-14 19:04:38,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:38,086 INFO L933 BasicCegarLoop]: 5462 mSDtfsCounter, 5440 mSDsluCounter, 10910 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5453 SdHoareTripleChecker+Valid, 16372 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:38,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5453 Valid, 16372 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:38,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2021-12-14 19:04:38,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3736. [2021-12-14 19:04:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 2636 states have (on average 1.3482549317147192) internal successors, (3554), 2694 states have internal predecessors, (3554), 947 states have call successors, (947), 151 states have call predecessors, (947), 150 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5445 transitions. [2021-12-14 19:04:38,308 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5445 transitions. Word has length 48 [2021-12-14 19:04:38,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:38,309 INFO L470 AbstractCegarLoop]: Abstraction has 3736 states and 5445 transitions. [2021-12-14 19:04:38,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-14 19:04:38,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5445 transitions. [2021-12-14 19:04:38,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-14 19:04:38,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:38,311 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:38,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 19:04:38,312 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:38,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:38,312 INFO L85 PathProgramCache]: Analyzing trace with hash 543393980, now seen corresponding path program 1 times [2021-12-14 19:04:38,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:38,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386615124] [2021-12-14 19:04:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:38,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 19:04:38,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:38,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386615124] [2021-12-14 19:04:38,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386615124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:38,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:38,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:38,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417693446] [2021-12-14 19:04:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:38,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:38,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:38,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:38,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:38,556 INFO L87 Difference]: Start difference. First operand 3736 states and 5445 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 19:04:38,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:38,781 INFO L93 Difference]: Finished difference Result 3742 states and 5450 transitions. [2021-12-14 19:04:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:38,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-12-14 19:04:38,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:38,806 INFO L225 Difference]: With dead ends: 3742 [2021-12-14 19:04:38,807 INFO L226 Difference]: Without dead ends: 3740 [2021-12-14 19:04:38,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:38,811 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:38,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5424 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2021-12-14 19:04:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3740. [2021-12-14 19:04:38,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 2639 states have (on average 1.3478590375142099) internal successors, (3557), 2697 states have internal predecessors, (3557), 947 states have call successors, (947), 152 states have call predecessors, (947), 151 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 5448 transitions. [2021-12-14 19:04:38,966 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 5448 transitions. Word has length 53 [2021-12-14 19:04:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:38,967 INFO L470 AbstractCegarLoop]: Abstraction has 3740 states and 5448 transitions. [2021-12-14 19:04:38,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 19:04:38,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 5448 transitions. [2021-12-14 19:04:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-14 19:04:38,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:38,973 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:38,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 19:04:38,974 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:38,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash 249513564, now seen corresponding path program 1 times [2021-12-14 19:04:38,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:38,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880367919] [2021-12-14 19:04:38,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:38,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 19:04:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-14 19:04:39,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:39,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880367919] [2021-12-14 19:04:39,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880367919] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:39,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:39,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:39,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544558632] [2021-12-14 19:04:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:39,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:39,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:39,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:39,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:39,180 INFO L87 Difference]: Start difference. First operand 3740 states and 5448 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 19:04:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:39,330 INFO L93 Difference]: Finished difference Result 3746 states and 5453 transitions. [2021-12-14 19:04:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-12-14 19:04:39,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:39,348 INFO L225 Difference]: With dead ends: 3746 [2021-12-14 19:04:39,349 INFO L226 Difference]: Without dead ends: 3744 [2021-12-14 19:04:39,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:39,352 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:39,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5423 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:39,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2021-12-14 19:04:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2021-12-14 19:04:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 2642 states have (on average 1.3474640423921271) internal successors, (3560), 2700 states have internal predecessors, (3560), 947 states have call successors, (947), 153 states have call predecessors, (947), 152 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5451 transitions. [2021-12-14 19:04:39,462 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5451 transitions. Word has length 58 [2021-12-14 19:04:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:39,463 INFO L470 AbstractCegarLoop]: Abstraction has 3744 states and 5451 transitions. [2021-12-14 19:04:39,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 19:04:39,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5451 transitions. [2021-12-14 19:04:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-14 19:04:39,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:39,464 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:39,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 19:04:39,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:39,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1942152878, now seen corresponding path program 1 times [2021-12-14 19:04:39,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:39,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581907595] [2021-12-14 19:04:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:39,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 19:04:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:04:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 19:04:39,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:39,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581907595] [2021-12-14 19:04:39,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581907595] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:39,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:39,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:39,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902436893] [2021-12-14 19:04:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:39,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:39,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:39,619 INFO L87 Difference]: Start difference. First operand 3744 states and 5451 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-14 19:04:39,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:39,927 INFO L93 Difference]: Finished difference Result 3750 states and 5456 transitions. [2021-12-14 19:04:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:39,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2021-12-14 19:04:39,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:39,948 INFO L225 Difference]: With dead ends: 3750 [2021-12-14 19:04:39,948 INFO L226 Difference]: Without dead ends: 3748 [2021-12-14 19:04:39,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:39,953 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5406 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:39,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5415 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2021-12-14 19:04:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3748. [2021-12-14 19:04:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 2645 states have (on average 1.347069943289225) internal successors, (3563), 2703 states have internal predecessors, (3563), 947 states have call successors, (947), 154 states have call predecessors, (947), 153 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:40,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5454 transitions. [2021-12-14 19:04:40,089 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5454 transitions. Word has length 70 [2021-12-14 19:04:40,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:40,091 INFO L470 AbstractCegarLoop]: Abstraction has 3748 states and 5454 transitions. [2021-12-14 19:04:40,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-14 19:04:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5454 transitions. [2021-12-14 19:04:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-14 19:04:40,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:40,094 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:40,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 19:04:40,094 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:40,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash -592391418, now seen corresponding path program 1 times [2021-12-14 19:04:40,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:40,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19344268] [2021-12-14 19:04:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:40,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 19:04:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:04:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 19:04:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-14 19:04:40,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:40,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19344268] [2021-12-14 19:04:40,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19344268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:40,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:40,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:40,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119841330] [2021-12-14 19:04:40,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:40,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:40,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:40,303 INFO L87 Difference]: Start difference. First operand 3748 states and 5454 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-14 19:04:40,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:40,453 INFO L93 Difference]: Finished difference Result 3754 states and 5459 transitions. [2021-12-14 19:04:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:40,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2021-12-14 19:04:40,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:40,473 INFO L225 Difference]: With dead ends: 3754 [2021-12-14 19:04:40,474 INFO L226 Difference]: Without dead ends: 3752 [2021-12-14 19:04:40,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:40,478 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5406 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:40,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5414 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2021-12-14 19:04:40,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3752. [2021-12-14 19:04:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 2648 states have (on average 1.346676737160121) internal successors, (3566), 2706 states have internal predecessors, (3566), 947 states have call successors, (947), 155 states have call predecessors, (947), 154 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:40,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5457 transitions. [2021-12-14 19:04:40,627 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5457 transitions. Word has length 75 [2021-12-14 19:04:40,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:40,628 INFO L470 AbstractCegarLoop]: Abstraction has 3752 states and 5457 transitions. [2021-12-14 19:04:40,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-14 19:04:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5457 transitions. [2021-12-14 19:04:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-14 19:04:40,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:40,629 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:40,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 19:04:40,629 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1074912878, now seen corresponding path program 1 times [2021-12-14 19:04:40,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:40,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690738763] [2021-12-14 19:04:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:40,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 19:04:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:04:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 19:04:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 19:04:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-14 19:04:40,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:40,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690738763] [2021-12-14 19:04:40,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690738763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:40,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:40,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:40,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963790624] [2021-12-14 19:04:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:40,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:40,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:40,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:40,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:40,787 INFO L87 Difference]: Start difference. First operand 3752 states and 5457 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 19:04:40,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:40,932 INFO L93 Difference]: Finished difference Result 3758 states and 5462 transitions. [2021-12-14 19:04:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:40,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2021-12-14 19:04:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:40,947 INFO L225 Difference]: With dead ends: 3758 [2021-12-14 19:04:40,947 INFO L226 Difference]: Without dead ends: 3756 [2021-12-14 19:04:40,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:40,949 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5406 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:40,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5413 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:40,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2021-12-14 19:04:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 3756. [2021-12-14 19:04:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 2651 states have (on average 1.3462844209732177) internal successors, (3569), 2709 states have internal predecessors, (3569), 947 states have call successors, (947), 156 states have call predecessors, (947), 155 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 5460 transitions. [2021-12-14 19:04:41,063 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 5460 transitions. Word has length 80 [2021-12-14 19:04:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:41,063 INFO L470 AbstractCegarLoop]: Abstraction has 3756 states and 5460 transitions. [2021-12-14 19:04:41,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 19:04:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 5460 transitions. [2021-12-14 19:04:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-14 19:04:41,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:41,064 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:41,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 19:04:41,065 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:41,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1674912326, now seen corresponding path program 1 times [2021-12-14 19:04:41,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:41,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687067602] [2021-12-14 19:04:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:41,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 19:04:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:04:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 19:04:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 19:04:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:04:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-14 19:04:41,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:41,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687067602] [2021-12-14 19:04:41,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687067602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:41,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:41,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:41,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781707984] [2021-12-14 19:04:41,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:41,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:41,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:41,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:41,221 INFO L87 Difference]: Start difference. First operand 3756 states and 5460 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 19:04:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:41,366 INFO L93 Difference]: Finished difference Result 3762 states and 5465 transitions. [2021-12-14 19:04:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 85 [2021-12-14 19:04:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:41,385 INFO L225 Difference]: With dead ends: 3762 [2021-12-14 19:04:41,386 INFO L226 Difference]: Without dead ends: 3760 [2021-12-14 19:04:41,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:41,390 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5406 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5412 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:41,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5412 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2021-12-14 19:04:41,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3760. [2021-12-14 19:04:41,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 2654 states have (on average 1.3458929917106255) internal successors, (3572), 2712 states have internal predecessors, (3572), 947 states have call successors, (947), 157 states have call predecessors, (947), 156 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2021-12-14 19:04:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 5463 transitions. [2021-12-14 19:04:41,515 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 5463 transitions. Word has length 85 [2021-12-14 19:04:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:41,516 INFO L470 AbstractCegarLoop]: Abstraction has 3760 states and 5463 transitions. [2021-12-14 19:04:41,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 19:04:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 5463 transitions. [2021-12-14 19:04:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-14 19:04:41,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:41,517 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:41,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 19:04:41,517 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:41,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash -422487044, now seen corresponding path program 1 times [2021-12-14 19:04:41,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:41,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673987448] [2021-12-14 19:04:41,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:41,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 19:04:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 19:04:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:04:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 19:04:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 19:04:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-14 19:04:41,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:41,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673987448] [2021-12-14 19:04:41,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673987448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:41,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:41,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:41,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759889432] [2021-12-14 19:04:41,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:41,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:41,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:41,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:41,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:41,667 INFO L87 Difference]: Start difference. First operand 3760 states and 5463 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 19:04:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:41,824 INFO L93 Difference]: Finished difference Result 4055 states and 5823 transitions. [2021-12-14 19:04:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2021-12-14 19:04:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:41,841 INFO L225 Difference]: With dead ends: 4055 [2021-12-14 19:04:41,841 INFO L226 Difference]: Without dead ends: 4053 [2021-12-14 19:04:41,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:41,844 INFO L933 BasicCegarLoop]: 5550 mSDtfsCounter, 5130 mSDsluCounter, 11714 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 17264 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:41,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5135 Valid, 17264 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:41,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4053 states. [2021-12-14 19:04:42,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4053 to 4047. [2021-12-14 19:04:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4047 states, 2852 states have (on average 1.3369565217391304) internal successors, (3813), 2917 states have internal predecessors, (3813), 1003 states have call successors, (1003), 193 states have call predecessors, (1003), 189 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2021-12-14 19:04:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 5817 transitions. [2021-12-14 19:04:42,075 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 5817 transitions. Word has length 83 [2021-12-14 19:04:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:42,075 INFO L470 AbstractCegarLoop]: Abstraction has 4047 states and 5817 transitions. [2021-12-14 19:04:42,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 19:04:42,076 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 5817 transitions. [2021-12-14 19:04:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-14 19:04:42,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:42,077 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:42,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 19:04:42,078 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:42,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:42,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1019285894, now seen corresponding path program 1 times [2021-12-14 19:04:42,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:42,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225529346] [2021-12-14 19:04:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:42,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 19:04:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 19:04:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 19:04:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 19:04:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 19:04:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 19:04:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 19:04:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-14 19:04:42,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:42,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225529346] [2021-12-14 19:04:42,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225529346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:42,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:42,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:42,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178130211] [2021-12-14 19:04:42,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:42,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:42,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:42,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:42,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:42,288 INFO L87 Difference]: Start difference. First operand 4047 states and 5817 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:04:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:42,506 INFO L93 Difference]: Finished difference Result 4053 states and 5822 transitions. [2021-12-14 19:04:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:42,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-12-14 19:04:42,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:42,522 INFO L225 Difference]: With dead ends: 4053 [2021-12-14 19:04:42,523 INFO L226 Difference]: Without dead ends: 4051 [2021-12-14 19:04:42,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:42,526 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5406 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5410 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:42,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5410 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2021-12-14 19:04:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 4051. [2021-12-14 19:04:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 2855 states have (on average 1.3366024518388793) internal successors, (3816), 2920 states have internal predecessors, (3816), 1003 states have call successors, (1003), 194 states have call predecessors, (1003), 190 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2021-12-14 19:04:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 5820 transitions. [2021-12-14 19:04:42,719 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 5820 transitions. Word has length 95 [2021-12-14 19:04:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:42,719 INFO L470 AbstractCegarLoop]: Abstraction has 4051 states and 5820 transitions. [2021-12-14 19:04:42,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 19:04:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 5820 transitions. [2021-12-14 19:04:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 19:04:42,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:42,721 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:42,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 19:04:42,721 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:42,722 INFO L85 PathProgramCache]: Analyzing trace with hash 207222716, now seen corresponding path program 1 times [2021-12-14 19:04:42,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:42,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978794982] [2021-12-14 19:04:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:42,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 19:04:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 19:04:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:04:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 19:04:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 19:04:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 19:04:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-14 19:04:42,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:42,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978794982] [2021-12-14 19:04:42,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978794982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:42,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:42,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:42,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450762068] [2021-12-14 19:04:42,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:42,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:42,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:42,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:42,943 INFO L87 Difference]: Start difference. First operand 4051 states and 5820 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 19:04:43,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:43,146 INFO L93 Difference]: Finished difference Result 4057 states and 5825 transitions. [2021-12-14 19:04:43,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:43,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2021-12-14 19:04:43,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:43,162 INFO L225 Difference]: With dead ends: 4057 [2021-12-14 19:04:43,162 INFO L226 Difference]: Without dead ends: 4055 [2021-12-14 19:04:43,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:43,165 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5416 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:43,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5416 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2021-12-14 19:04:43,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 4055. [2021-12-14 19:04:43,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4055 states, 2858 states have (on average 1.3362491252624213) internal successors, (3819), 2923 states have internal predecessors, (3819), 1003 states have call successors, (1003), 195 states have call predecessors, (1003), 191 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2021-12-14 19:04:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4055 states to 4055 states and 5823 transitions. [2021-12-14 19:04:43,401 INFO L78 Accepts]: Start accepts. Automaton has 4055 states and 5823 transitions. Word has length 93 [2021-12-14 19:04:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:43,401 INFO L470 AbstractCegarLoop]: Abstraction has 4055 states and 5823 transitions. [2021-12-14 19:04:43,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-14 19:04:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4055 states and 5823 transitions. [2021-12-14 19:04:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-14 19:04:43,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:43,405 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:43,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 19:04:43,405 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1753287332, now seen corresponding path program 1 times [2021-12-14 19:04:43,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:43,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191113251] [2021-12-14 19:04:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:43,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 19:04:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 19:04:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:04:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 19:04:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 19:04:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 19:04:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:04:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-14 19:04:43,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191113251] [2021-12-14 19:04:43,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191113251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:43,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:43,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:43,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712549440] [2021-12-14 19:04:43,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:43,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:43,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:43,639 INFO L87 Difference]: Start difference. First operand 4055 states and 5823 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:04:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:43,869 INFO L93 Difference]: Finished difference Result 4061 states and 5828 transitions. [2021-12-14 19:04:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:43,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2021-12-14 19:04:43,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:43,887 INFO L225 Difference]: With dead ends: 4061 [2021-12-14 19:04:43,888 INFO L226 Difference]: Without dead ends: 4059 [2021-12-14 19:04:43,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:43,891 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:43,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5415 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:43,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2021-12-14 19:04:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 4059. [2021-12-14 19:04:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 2861 states have (on average 1.3358965396714435) internal successors, (3822), 2926 states have internal predecessors, (3822), 1003 states have call successors, (1003), 196 states have call predecessors, (1003), 192 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2021-12-14 19:04:44,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5826 transitions. [2021-12-14 19:04:44,139 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5826 transitions. Word has length 98 [2021-12-14 19:04:44,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:44,140 INFO L470 AbstractCegarLoop]: Abstraction has 4059 states and 5826 transitions. [2021-12-14 19:04:44,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 19:04:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5826 transitions. [2021-12-14 19:04:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-14 19:04:44,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:44,142 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:44,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 19:04:44,142 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:44,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:44,143 INFO L85 PathProgramCache]: Analyzing trace with hash 773100412, now seen corresponding path program 1 times [2021-12-14 19:04:44,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:44,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898898123] [2021-12-14 19:04:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:44,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 19:04:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 19:04:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:04:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 19:04:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 19:04:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 19:04:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:04:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 19:04:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-14 19:04:44,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:44,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898898123] [2021-12-14 19:04:44,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898898123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:44,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:44,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:44,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900081521] [2021-12-14 19:04:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:44,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:44,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:44,339 INFO L87 Difference]: Start difference. First operand 4059 states and 5826 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 19:04:44,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:44,504 INFO L93 Difference]: Finished difference Result 4065 states and 5831 transitions. [2021-12-14 19:04:44,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:44,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2021-12-14 19:04:44,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:44,519 INFO L225 Difference]: With dead ends: 4065 [2021-12-14 19:04:44,519 INFO L226 Difference]: Without dead ends: 4061 [2021-12-14 19:04:44,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:44,522 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:44,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5414 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2021-12-14 19:04:44,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 4061. [2021-12-14 19:04:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4061 states, 2863 states have (on average 1.33531260915124) internal successors, (3823), 2927 states have internal predecessors, (3823), 1003 states have call successors, (1003), 197 states have call predecessors, (1003), 192 states have return successors, (1001), 980 states have call predecessors, (1001), 1000 states have call successors, (1001) [2021-12-14 19:04:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4061 states to 4061 states and 5827 transitions. [2021-12-14 19:04:44,678 INFO L78 Accepts]: Start accepts. Automaton has 4061 states and 5827 transitions. Word has length 103 [2021-12-14 19:04:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:44,678 INFO L470 AbstractCegarLoop]: Abstraction has 4061 states and 5827 transitions. [2021-12-14 19:04:44,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 19:04:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4061 states and 5827 transitions. [2021-12-14 19:04:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-14 19:04:44,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:44,680 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:44,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 19:04:44,680 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:44,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1091166492, now seen corresponding path program 1 times [2021-12-14 19:04:44,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:44,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256124852] [2021-12-14 19:04:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:44,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 19:04:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 19:04:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 19:04:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 19:04:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 19:04:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 19:04:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 19:04:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 19:04:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 19:04:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:04:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 19:04:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 19:04:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-14 19:04:44,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:44,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256124852] [2021-12-14 19:04:44,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256124852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:44,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:44,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:44,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332949794] [2021-12-14 19:04:44,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:44,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:44,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:44,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:44,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:44,917 INFO L87 Difference]: Start difference. First operand 4061 states and 5827 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 19:04:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:45,110 INFO L93 Difference]: Finished difference Result 4061 states and 5827 transitions. [2021-12-14 19:04:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:45,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2021-12-14 19:04:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:45,126 INFO L225 Difference]: With dead ends: 4061 [2021-12-14 19:04:45,126 INFO L226 Difference]: Without dead ends: 3968 [2021-12-14 19:04:45,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:45,129 INFO L933 BasicCegarLoop]: 5440 mSDtfsCounter, 5409 mSDsluCounter, 10863 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 16303 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:45,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5409 Valid, 16303 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 19:04:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2021-12-14 19:04:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3968. [2021-12-14 19:04:45,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 2805 states have (on average 1.3411764705882352) internal successors, (3762), 2867 states have internal predecessors, (3762), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2021-12-14 19:04:45,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5725 transitions. [2021-12-14 19:04:45,294 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5725 transitions. Word has length 108 [2021-12-14 19:04:45,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:45,294 INFO L470 AbstractCegarLoop]: Abstraction has 3968 states and 5725 transitions. [2021-12-14 19:04:45,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 19:04:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5725 transitions. [2021-12-14 19:04:45,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-14 19:04:45,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:45,301 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:45,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 19:04:45,302 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:45,302 INFO L85 PathProgramCache]: Analyzing trace with hash 813670217, now seen corresponding path program 1 times [2021-12-14 19:04:45,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:45,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218454025] [2021-12-14 19:04:45,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:45,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:04:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 19:04:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 19:04:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 19:04:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 19:04:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 19:04:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 19:04:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 19:04:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 19:04:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 19:04:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 19:04:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:45,565 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-12-14 19:04:45,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:45,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218454025] [2021-12-14 19:04:45,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218454025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:45,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:45,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 19:04:45,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478080121] [2021-12-14 19:04:45,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:45,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 19:04:45,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:45,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 19:04:45,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 19:04:45,568 INFO L87 Difference]: Start difference. First operand 3968 states and 5725 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 19:04:47,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:51,535 INFO L93 Difference]: Finished difference Result 8110 states and 11706 transitions. [2021-12-14 19:04:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 19:04:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 180 [2021-12-14 19:04:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:51,560 INFO L225 Difference]: With dead ends: 8110 [2021-12-14 19:04:51,560 INFO L226 Difference]: Without dead ends: 4159 [2021-12-14 19:04:51,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:51,580 INFO L933 BasicCegarLoop]: 4733 mSDtfsCounter, 6429 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 2877 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6679 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2877 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:51,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6679 Valid, 5986 Invalid, 3933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2877 Valid, 1055 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2021-12-14 19:04:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4159 states. [2021-12-14 19:04:51,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4159 to 3967. [2021-12-14 19:04:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2804 states have (on average 1.3405848787446506) internal successors, (3759), 2866 states have internal predecessors, (3759), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2021-12-14 19:04:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5722 transitions. [2021-12-14 19:04:51,763 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5722 transitions. Word has length 180 [2021-12-14 19:04:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:51,764 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5722 transitions. [2021-12-14 19:04:51,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 19:04:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5722 transitions. [2021-12-14 19:04:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-14 19:04:51,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:51,771 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:04:51,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 19:04:51,771 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:04:51,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:51,772 INFO L85 PathProgramCache]: Analyzing trace with hash 108529337, now seen corresponding path program 1 times [2021-12-14 19:04:51,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:51,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112508899] [2021-12-14 19:04:51,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:51,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:04:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:04:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:04:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:04:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 19:04:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 19:04:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 19:04:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:04:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 19:04:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 19:04:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:04:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 19:04:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-14 19:04:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 19:04:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-12-14 19:04:52,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:52,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112508899] [2021-12-14 19:04:52,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112508899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:52,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:52,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 19:04:52,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304858056] [2021-12-14 19:04:52,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:52,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 19:04:52,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:52,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 19:04:52,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 19:04:52,069 INFO L87 Difference]: Start difference. First operand 3967 states and 5722 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 19:04:53,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:05:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:02,580 INFO L93 Difference]: Finished difference Result 4165 states and 6008 transitions. [2021-12-14 19:05:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 19:05:02,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2021-12-14 19:05:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:02,607 INFO L225 Difference]: With dead ends: 4165 [2021-12-14 19:05:02,607 INFO L226 Difference]: Without dead ends: 4163 [2021-12-14 19:05:02,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-14 19:05:02,611 INFO L933 BasicCegarLoop]: 4797 mSDtfsCounter, 6379 mSDsluCounter, 8200 mSDsCounter, 0 mSdLazyCounter, 5821 mSolverCounterSat, 2876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6643 SdHoareTripleChecker+Valid, 12997 SdHoareTripleChecker+Invalid, 8697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 5821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:05:02,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6643 Valid, 12997 Invalid, 8697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2876 Valid, 5821 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2021-12-14 19:05:02,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2021-12-14 19:05:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 3967. [2021-12-14 19:05:02,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2804 states have (on average 1.340228245363766) internal successors, (3758), 2866 states have internal predecessors, (3758), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2021-12-14 19:05:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5721 transitions. [2021-12-14 19:05:03,011 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5721 transitions. Word has length 182 [2021-12-14 19:05:03,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:03,011 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5721 transitions. [2021-12-14 19:05:03,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 19:05:03,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5721 transitions. [2021-12-14 19:05:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-14 19:05:03,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:03,027 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:03,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 19:05:03,028 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 19:05:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:03,028 INFO L85 PathProgramCache]: Analyzing trace with hash -543322062, now seen corresponding path program 1 times [2021-12-14 19:05:03,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:03,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312855523] [2021-12-14 19:05:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:03,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:05:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 19:05:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 19:05:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 19:05:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 19:05:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 19:05:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 19:05:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 19:05:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 19:05:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 19:05:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 19:05:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 19:05:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 19:05:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 19:05:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 19:05:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 19:05:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 19:05:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:05:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 19:05:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 19:05:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-14 19:05:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 19:05:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:05:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-14 19:05:03,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:03,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312855523] [2021-12-14 19:05:03,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312855523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:03,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:03,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 19:05:03,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675743822] [2021-12-14 19:05:03,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:03,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 19:05:03,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:03,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 19:05:03,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 19:05:03,324 INFO L87 Difference]: Start difference. First operand 3967 states and 5721 transitions. Second operand has 7 states, 6 states have (on average 17.5) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-14 19:05:05,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:05:07,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:05:09,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []