./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.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-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.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 d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:47:48,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:47:48,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:47:48,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:47:48,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:47:48,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:47:48,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:47:48,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:47:48,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:47:48,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:47:48,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:47:48,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:47:48,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:47:48,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:47:48,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:47:48,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:47:48,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:47:48,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:47:48,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:47:48,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:47:48,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:47:48,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:47:48,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:47:48,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:47:48,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:47:48,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:47:48,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:47:48,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:47:48,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:47:48,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:47:48,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:47:48,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:47:48,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:47:48,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:47:48,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:47:48,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:47:48,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:47:48,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:47:48,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:47:48,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:47:48,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:47:48,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:47:48,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:47:48,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:47:48,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:47:48,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:47:48,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:47:48,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:47:48,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:47:48,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:47:48,803 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:47:48,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:47:48,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:47:48,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:47:48,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:47:48,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:47:48,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:47:48,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:47:48,805 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:47:48,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:47:48,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:47:48,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:47:48,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:47:48,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:47:48,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:47:48,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:47:48,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:47:48,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:47:48,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:47:48,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:47:48,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:47:48,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:47:48,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:47:48,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 [2021-12-14 18:47:49,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:47:49,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:47:49,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:47:49,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:47:49,059 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:47:49,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-14 18:47:49,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb3b89c3/26bdb89c112f430184d5a73ee256b6ba/FLAG81e8a1cbe [2021-12-14 18:47:49,807 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:47:49,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-14 18:47:49,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb3b89c3/26bdb89c112f430184d5a73ee256b6ba/FLAG81e8a1cbe [2021-12-14 18:47:49,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb3b89c3/26bdb89c112f430184d5a73ee256b6ba [2021-12-14 18:47:49,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:47:49,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:47:49,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:47:49,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:47:49,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:47:49,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:47:49" (1/1) ... [2021-12-14 18:47:49,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1874bfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:49, skipping insertion in model container [2021-12-14 18:47:49,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:47:49" (1/1) ... [2021-12-14 18:47:49,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:47:50,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:47:52,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2021-12-14 18:47:52,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2021-12-14 18:47:52,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2021-12-14 18:47:52,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2021-12-14 18:47:52,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:47:52,436 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:47:52,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2021-12-14 18:47:52,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2021-12-14 18:47:52,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2021-12-14 18:47:52,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2021-12-14 18:47:52,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:47:52,940 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:47:52,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52 WrapperNode [2021-12-14 18:47:52,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:47:52,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:47:52,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:47:52,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:47:52,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,282 INFO L137 Inliner]: procedures = 547, calls = 4326, calls flagged for inlining = 248, calls inlined = 226, statements flattened = 8589 [2021-12-14 18:47:53,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:47:53,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:47:53,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:47:53,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:47:53,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:47:53,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:47:53,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:47:53,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:47:53,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (1/1) ... [2021-12-14 18:47:53,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:47:53,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:47:53,646 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 18:47:53,663 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 18:47:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:47:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:47:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:47:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:47:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-14 18:47:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-14 18:47:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-14 18:47:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-14 18:47:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-12-14 18:47:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-12-14 18:47:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:47:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:47:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-12-14 18:47:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-12-14 18:47:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:47:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:47:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:47:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:47:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-12-14 18:47:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-12-14 18:47:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_82 [2021-12-14 18:47:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_82 [2021-12-14 18:47:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-12-14 18:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-12-14 18:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-14 18:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-14 18:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-12-14 18:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-12-14 18:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-14 18:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-14 18:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-14 18:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-14 18:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-12-14 18:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-12-14 18:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-14 18:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-14 18:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-14 18:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-14 18:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-14 18:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-14 18:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-12-14 18:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-12-14 18:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:47:53,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-12-14 18:47:53,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-12-14 18:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-12-14 18:47:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-12-14 18:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-12-14 18:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-12-14 18:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 18:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 18:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-14 18:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-14 18:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 18:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 18:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-14 18:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-14 18:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-14 18:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-14 18:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-12-14 18:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-12-14 18:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-14 18:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-14 18:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-14 18:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-14 18:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-12-14 18:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-12-14 18:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-14 18:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-14 18:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-12-14 18:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-12-14 18:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-14 18:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-14 18:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-12-14 18:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-12-14 18:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-14 18:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-14 18:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 18:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 18:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-12-14 18:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-12-14 18:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_83 [2021-12-14 18:47:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_83 [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-12-14 18:47:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:47:53,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:47:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_98 [2021-12-14 18:47:53,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_98 [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:47:53,742 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:47:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-12-14 18:47:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-12-14 18:47:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:47:53,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:47:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_81 [2021-12-14 18:47:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_81 [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:47:53,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_108 [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_108 [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_89 [2021-12-14 18:47:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_89 [2021-12-14 18:47:53,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_88 [2021-12-14 18:47:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_88 [2021-12-14 18:47:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-12-14 18:47:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-12-14 18:47:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-14 18:47:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-14 18:47:53,747 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-14 18:47:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-12-14 18:47:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-12-14 18:47:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_109 [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_109 [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_94 [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_94 [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-12-14 18:47:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_90 [2021-12-14 18:47:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_90 [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-14 18:47:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-12-14 18:47:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-12-14 18:47:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:47:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:47:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:47:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:47:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:47:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-14 18:47:53,759 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-14 18:47:54,673 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:47:54,676 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:47:55,750 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:47:59,145 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:47:59,165 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:47:59,165 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:47:59,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:47:59 BoogieIcfgContainer [2021-12-14 18:47:59,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:47:59,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:47:59,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:47:59,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:47:59,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:47:49" (1/3) ... [2021-12-14 18:47:59,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90dcc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:47:59, skipping insertion in model container [2021-12-14 18:47:59,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:47:52" (2/3) ... [2021-12-14 18:47:59,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90dcc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:47:59, skipping insertion in model container [2021-12-14 18:47:59,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:47:59" (3/3) ... [2021-12-14 18:47:59,176 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-14 18:47:59,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:47:59,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 18:47:59,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:47:59,220 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 18:47:59,220 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 18:47:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 2828 states, 1912 states have (on average 1.3284518828451883) internal successors, (2540), 2000 states have internal predecessors, (2540), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) [2021-12-14 18:47:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-14 18:47:59,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:47:59,283 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:47:59,283 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 18:47:59,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:47:59,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1624278035, now seen corresponding path program 1 times [2021-12-14 18:47:59,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:47:59,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783513529] [2021-12-14 18:47:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:47:59,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:47:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:47:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:47:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:47:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:47:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:47:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:47:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:47:59,936 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 18:47:59,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:47:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783513529] [2021-12-14 18:47:59,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783513529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:47:59,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:47:59,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:47:59,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754554125] [2021-12-14 18:47:59,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:47:59,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:47:59,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:47:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:47:59,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:47:59,992 INFO L87 Difference]: Start difference. First operand has 2828 states, 1912 states have (on average 1.3284518828451883) internal successors, (2540), 2000 states have internal predecessors, (2540), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 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 18:48:02,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:02,734 INFO L93 Difference]: Finished difference Result 9850 states and 14683 transitions. [2021-12-14 18:48:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:48:02,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 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 55 [2021-12-14 18:48:02,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:02,776 INFO L225 Difference]: With dead ends: 9850 [2021-12-14 18:48:02,776 INFO L226 Difference]: Without dead ends: 7017 [2021-12-14 18:48:02,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:48:02,805 INFO L933 BasicCegarLoop]: 6553 mSDtfsCounter, 7704 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 1186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7704 SdHoareTripleChecker+Valid, 12357 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:02,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7704 Valid, 12357 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1186 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 18:48:02,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2021-12-14 18:48:03,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 6957. [2021-12-14 18:48:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6957 states, 4622 states have (on average 1.3067935958459542) internal successors, (6040), 4828 states have internal predecessors, (6040), 1897 states have call successors, (1897), 436 states have call predecessors, (1897), 435 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 18:48:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6957 states to 6957 states and 9831 transitions. [2021-12-14 18:48:03,117 INFO L78 Accepts]: Start accepts. Automaton has 6957 states and 9831 transitions. Word has length 55 [2021-12-14 18:48:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:03,118 INFO L470 AbstractCegarLoop]: Abstraction has 6957 states and 9831 transitions. [2021-12-14 18:48:03,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 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 18:48:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6957 states and 9831 transitions. [2021-12-14 18:48:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-14 18:48:03,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:03,121 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:48:03,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:48:03,121 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 18:48:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1899037649, now seen corresponding path program 1 times [2021-12-14 18:48:03,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:03,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747896822] [2021-12-14 18:48:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:03,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:03,505 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 18:48:03,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:03,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747896822] [2021-12-14 18:48:03,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747896822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:03,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:03,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:03,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772129754] [2021-12-14 18:48:03,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:03,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:03,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:03,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:03,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:03,509 INFO L87 Difference]: Start difference. First operand 6957 states and 9831 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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 18:48:03,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:03,687 INFO L93 Difference]: Finished difference Result 6963 states and 9836 transitions. [2021-12-14 18:48:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:03,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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 55 [2021-12-14 18:48:03,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:03,726 INFO L225 Difference]: With dead ends: 6963 [2021-12-14 18:48:03,727 INFO L226 Difference]: Without dead ends: 6961 [2021-12-14 18:48:03,735 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 18:48:03,737 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3983 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 12021 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:03,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3996 Valid, 12021 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6961 states. [2021-12-14 18:48:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6961 to 6961. [2021-12-14 18:48:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6961 states, 4625 states have (on average 1.3065945945945947) internal successors, (6043), 4831 states have internal predecessors, (6043), 1897 states have call successors, (1897), 437 states have call predecessors, (1897), 436 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 18:48:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6961 states to 6961 states and 9834 transitions. [2021-12-14 18:48:03,987 INFO L78 Accepts]: Start accepts. Automaton has 6961 states and 9834 transitions. Word has length 55 [2021-12-14 18:48:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:03,988 INFO L470 AbstractCegarLoop]: Abstraction has 6961 states and 9834 transitions. [2021-12-14 18:48:03,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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 18:48:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6961 states and 9834 transitions. [2021-12-14 18:48:03,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-14 18:48:03,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:03,995 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:48:03,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:48:03,995 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 18:48:03,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:03,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1241173696, now seen corresponding path program 1 times [2021-12-14 18:48:03,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:03,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451776122] [2021-12-14 18:48:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:03,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,219 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 18:48:04,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:04,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451776122] [2021-12-14 18:48:04,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451776122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:04,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:04,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:04,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98443704] [2021-12-14 18:48:04,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:04,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:04,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:04,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:04,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:04,221 INFO L87 Difference]: Start difference. First operand 6961 states and 9834 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, (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 18:48:04,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:04,421 INFO L93 Difference]: Finished difference Result 6967 states and 9839 transitions. [2021-12-14 18:48:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:04,423 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, (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 60 [2021-12-14 18:48:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:04,451 INFO L225 Difference]: With dead ends: 6967 [2021-12-14 18:48:04,452 INFO L226 Difference]: Without dead ends: 6965 [2021-12-14 18:48:04,462 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 18:48:04,465 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:04,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3990 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:04,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2021-12-14 18:48:04,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2021-12-14 18:48:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 4628 states have (on average 1.3063958513396716) internal successors, (6046), 4834 states have internal predecessors, (6046), 1897 states have call successors, (1897), 438 states have call predecessors, (1897), 437 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 18:48:04,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 9837 transitions. [2021-12-14 18:48:04,755 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 9837 transitions. Word has length 60 [2021-12-14 18:48:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:04,757 INFO L470 AbstractCegarLoop]: Abstraction has 6965 states and 9837 transitions. [2021-12-14 18:48:04,758 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, (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 18:48:04,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 9837 transitions. [2021-12-14 18:48:04,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 18:48:04,759 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:04,760 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:48:04,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:48:04,760 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 18:48:04,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:04,760 INFO L85 PathProgramCache]: Analyzing trace with hash 586024591, now seen corresponding path program 1 times [2021-12-14 18:48:04,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:04,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916606468] [2021-12-14 18:48:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:04,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:04,979 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 18:48:04,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:04,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916606468] [2021-12-14 18:48:04,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916606468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:04,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:04,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:04,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906119355] [2021-12-14 18:48:04,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:04,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:04,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:04,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:04,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:04,981 INFO L87 Difference]: Start difference. First operand 6965 states and 9837 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, (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 18:48:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:05,164 INFO L93 Difference]: Finished difference Result 6971 states and 9842 transitions. [2021-12-14 18:48:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:05,164 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, (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 65 [2021-12-14 18:48:05,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:05,190 INFO L225 Difference]: With dead ends: 6971 [2021-12-14 18:48:05,191 INFO L226 Difference]: Without dead ends: 6969 [2021-12-14 18:48:05,194 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 18:48:05,195 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:05,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2021-12-14 18:48:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6969. [2021-12-14 18:48:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 4631 states have (on average 1.3061973655797883) internal successors, (6049), 4837 states have internal predecessors, (6049), 1897 states have call successors, (1897), 439 states have call predecessors, (1897), 438 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 18:48:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 9840 transitions. [2021-12-14 18:48:05,513 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 9840 transitions. Word has length 65 [2021-12-14 18:48:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:05,513 INFO L470 AbstractCegarLoop]: Abstraction has 6969 states and 9840 transitions. [2021-12-14 18:48:05,513 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, (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 18:48:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 9840 transitions. [2021-12-14 18:48:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-14 18:48:05,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:05,515 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 18:48:05,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:48:05,515 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 18:48:05,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash 633171936, now seen corresponding path program 1 times [2021-12-14 18:48:05,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:05,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881811720] [2021-12-14 18:48:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:05,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:05,726 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 18:48:05,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:05,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881811720] [2021-12-14 18:48:05,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881811720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:05,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:05,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:05,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796556161] [2021-12-14 18:48:05,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:05,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:05,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:05,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:05,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:05,729 INFO L87 Difference]: Start difference. First operand 6969 states and 9840 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 18:48:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:05,937 INFO L93 Difference]: Finished difference Result 6975 states and 9845 transitions. [2021-12-14 18:48:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:05,937 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 18:48:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:05,961 INFO L225 Difference]: With dead ends: 6975 [2021-12-14 18:48:05,962 INFO L226 Difference]: Without dead ends: 6973 [2021-12-14 18:48:05,965 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 18:48:05,966 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:05,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3988 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:05,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2021-12-14 18:48:06,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6973. [2021-12-14 18:48:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 4634 states have (on average 1.3059991368148467) internal successors, (6052), 4840 states have internal predecessors, (6052), 1897 states have call successors, (1897), 440 states have call predecessors, (1897), 439 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 18:48:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 9843 transitions. [2021-12-14 18:48:06,206 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 9843 transitions. Word has length 70 [2021-12-14 18:48:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:06,208 INFO L470 AbstractCegarLoop]: Abstraction has 6973 states and 9843 transitions. [2021-12-14 18:48:06,208 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 18:48:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 9843 transitions. [2021-12-14 18:48:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-14 18:48:06,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:06,209 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 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] [2021-12-14 18:48:06,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:48:06,210 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 18:48:06,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:06,210 INFO L85 PathProgramCache]: Analyzing trace with hash -344833697, now seen corresponding path program 1 times [2021-12-14 18:48:06,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:06,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861533708] [2021-12-14 18:48:06,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:06,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:48:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:48:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 18:48:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-14 18:48:06,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:06,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861533708] [2021-12-14 18:48:06,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861533708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:06,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:06,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:48:06,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142587720] [2021-12-14 18:48:06,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:06,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:48:06,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:48:06,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:48:06,492 INFO L87 Difference]: Start difference. First operand 6973 states and 9843 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:48:08,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:08,517 INFO L93 Difference]: Finished difference Result 11246 states and 15807 transitions. [2021-12-14 18:48:08,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:48:08,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2021-12-14 18:48:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:08,557 INFO L225 Difference]: With dead ends: 11246 [2021-12-14 18:48:08,557 INFO L226 Difference]: Without dead ends: 9129 [2021-12-14 18:48:08,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:48:08,576 INFO L933 BasicCegarLoop]: 7542 mSDtfsCounter, 6936 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6936 SdHoareTripleChecker+Valid, 14594 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:08,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6936 Valid, 14594 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 18:48:08,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9129 states. [2021-12-14 18:48:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9129 to 9037. [2021-12-14 18:48:08,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9037 states, 5984 states have (on average 1.3039772727272727) internal successors, (7803), 6251 states have internal predecessors, (7803), 2470 states have call successors, (2470), 581 states have call predecessors, (2470), 580 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-14 18:48:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 12740 transitions. [2021-12-14 18:48:08,994 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 12740 transitions. Word has length 86 [2021-12-14 18:48:08,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:08,995 INFO L470 AbstractCegarLoop]: Abstraction has 9037 states and 12740 transitions. [2021-12-14 18:48:08,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-14 18:48:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 12740 transitions. [2021-12-14 18:48:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-14 18:48:08,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:08,997 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 18:48:08,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:48:08,998 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 18:48:08,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1132284143, now seen corresponding path program 1 times [2021-12-14 18:48:08,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17781515] [2021-12-14 18:48:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:09,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:48:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:09,233 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 18:48:09,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:09,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17781515] [2021-12-14 18:48:09,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17781515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:09,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:09,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:09,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333082717] [2021-12-14 18:48:09,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:09,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:09,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:09,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:09,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:09,236 INFO L87 Difference]: Start difference. First operand 9037 states and 12740 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 18:48:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:09,531 INFO L93 Difference]: Finished difference Result 9043 states and 12745 transitions. [2021-12-14 18:48:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:09,548 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 18:48:09,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:09,573 INFO L225 Difference]: With dead ends: 9043 [2021-12-14 18:48:09,587 INFO L226 Difference]: Without dead ends: 9041 [2021-12-14 18:48:09,590 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 18:48:09,592 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:09,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3987 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2021-12-14 18:48:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 9041. [2021-12-14 18:48:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9041 states, 5987 states have (on average 1.3038249540671454) internal successors, (7806), 6254 states have internal predecessors, (7806), 2470 states have call successors, (2470), 582 states have call predecessors, (2470), 581 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-14 18:48:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9041 states to 9041 states and 12743 transitions. [2021-12-14 18:48:09,884 INFO L78 Accepts]: Start accepts. Automaton has 9041 states and 12743 transitions. Word has length 75 [2021-12-14 18:48:09,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:09,885 INFO L470 AbstractCegarLoop]: Abstraction has 9041 states and 12743 transitions. [2021-12-14 18:48:09,885 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 18:48:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 9041 states and 12743 transitions. [2021-12-14 18:48:09,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-14 18:48:09,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:09,890 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 18:48:09,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:48:09,891 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 18:48:09,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1249040640, now seen corresponding path program 1 times [2021-12-14 18:48:09,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:09,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24993661] [2021-12-14 18:48:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:09,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:48:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 18:48:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,152 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 18:48:10,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:10,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24993661] [2021-12-14 18:48:10,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24993661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:10,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:10,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:10,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711597448] [2021-12-14 18:48:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:10,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:10,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:10,154 INFO L87 Difference]: Start difference. First operand 9041 states and 12743 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 18:48:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:10,361 INFO L93 Difference]: Finished difference Result 9047 states and 12748 transitions. [2021-12-14 18:48:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:10,362 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 18:48:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:10,393 INFO L225 Difference]: With dead ends: 9047 [2021-12-14 18:48:10,394 INFO L226 Difference]: Without dead ends: 9045 [2021-12-14 18:48:10,399 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 18:48:10,400 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3986 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:10,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3986 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9045 states. [2021-12-14 18:48:10,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9045 to 9045. [2021-12-14 18:48:10,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 5990 states have (on average 1.3036727879799666) internal successors, (7809), 6257 states have internal predecessors, (7809), 2470 states have call successors, (2470), 583 states have call predecessors, (2470), 582 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-14 18:48:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 12746 transitions. [2021-12-14 18:48:10,698 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 12746 transitions. Word has length 80 [2021-12-14 18:48:10,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:10,699 INFO L470 AbstractCegarLoop]: Abstraction has 9045 states and 12746 transitions. [2021-12-14 18:48:10,699 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 18:48:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 12746 transitions. [2021-12-14 18:48:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-14 18:48:10,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:10,701 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 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] [2021-12-14 18:48:10,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 18:48:10,701 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 18:48:10,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:10,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1487266301, now seen corresponding path program 1 times [2021-12-14 18:48:10,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:10,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819783757] [2021-12-14 18:48:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:10,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:48:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:48:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 18:48:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:48:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 18:48:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:10,994 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-14 18:48:10,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:10,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819783757] [2021-12-14 18:48:10,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819783757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:10,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:10,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:10,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200527541] [2021-12-14 18:48:10,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:10,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:10,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:10,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:10,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:10,996 INFO L87 Difference]: Start difference. First operand 9045 states and 12746 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 18:48:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:11,305 INFO L93 Difference]: Finished difference Result 13703 states and 19256 transitions. [2021-12-14 18:48:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:11,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 96 [2021-12-14 18:48:11,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:11,360 INFO L225 Difference]: With dead ends: 13703 [2021-12-14 18:48:11,360 INFO L226 Difference]: Without dead ends: 13701 [2021-12-14 18:48:11,369 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 18:48:11,371 INFO L933 BasicCegarLoop]: 4989 mSDtfsCounter, 3604 mSDsluCounter, 11949 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3611 SdHoareTripleChecker+Valid, 16938 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:11,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3611 Valid, 16938 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13701 states. [2021-12-14 18:48:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13701 to 13689. [2021-12-14 18:48:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13689 states, 9012 states have (on average 1.3021526853084775) internal successors, (11735), 9411 states have internal predecessors, (11735), 3730 states have call successors, (3730), 969 states have call predecessors, (3730), 944 states have return successors, (3779), 3616 states have call predecessors, (3779), 3727 states have call successors, (3779) [2021-12-14 18:48:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13689 states to 13689 states and 19244 transitions. [2021-12-14 18:48:11,855 INFO L78 Accepts]: Start accepts. Automaton has 13689 states and 19244 transitions. Word has length 96 [2021-12-14 18:48:11,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:11,855 INFO L470 AbstractCegarLoop]: Abstraction has 13689 states and 19244 transitions. [2021-12-14 18:48:11,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 18:48:11,855 INFO L276 IsEmpty]: Start isEmpty. Operand 13689 states and 19244 transitions. [2021-12-14 18:48:11,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-14 18:48:11,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:11,857 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 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] [2021-12-14 18:48:11,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 18:48:11,858 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 18:48:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:11,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1541400626, now seen corresponding path program 1 times [2021-12-14 18:48:11,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:11,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159739865] [2021-12-14 18:48:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:11,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:48:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:48:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 18:48:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:48:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 18:48:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 18:48:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-14 18:48:12,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159739865] [2021-12-14 18:48:12,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159739865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:12,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:12,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:12,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221758217] [2021-12-14 18:48:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:12,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:12,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:12,071 INFO L87 Difference]: Start difference. First operand 13689 states and 19244 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 18:48:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:12,467 INFO L93 Difference]: Finished difference Result 13695 states and 19249 transitions. [2021-12-14 18:48:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:12,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 101 [2021-12-14 18:48:12,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:12,517 INFO L225 Difference]: With dead ends: 13695 [2021-12-14 18:48:12,517 INFO L226 Difference]: Without dead ends: 13693 [2021-12-14 18:48:12,526 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 18:48:12,526 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:12,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2021-12-14 18:48:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 13693. [2021-12-14 18:48:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13693 states, 9015 states have (on average 1.3020521353300056) internal successors, (11738), 9414 states have internal predecessors, (11738), 3730 states have call successors, (3730), 970 states have call predecessors, (3730), 945 states have return successors, (3779), 3616 states have call predecessors, (3779), 3727 states have call successors, (3779) [2021-12-14 18:48:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 19247 transitions. [2021-12-14 18:48:12,975 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 19247 transitions. Word has length 101 [2021-12-14 18:48:12,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:12,976 INFO L470 AbstractCegarLoop]: Abstraction has 13693 states and 19247 transitions. [2021-12-14 18:48:12,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 18:48:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 19247 transitions. [2021-12-14 18:48:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-14 18:48:12,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:12,978 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 18:48:12,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 18:48:12,978 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 18:48:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:12,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2111075759, now seen corresponding path program 1 times [2021-12-14 18:48:12,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:12,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275778220] [2021-12-14 18:48:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:12,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:48:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 18:48:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 18:48:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 18:48:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 18:48:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:13,208 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 18:48:13,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:13,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275778220] [2021-12-14 18:48:13,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275778220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:13,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:13,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:13,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612358984] [2021-12-14 18:48:13,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:13,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:13,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:13,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:13,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:13,210 INFO L87 Difference]: Start difference. First operand 13693 states and 19247 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 18:48:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:13,641 INFO L93 Difference]: Finished difference Result 14389 states and 20024 transitions. [2021-12-14 18:48:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:13,642 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 18:48:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:13,687 INFO L225 Difference]: With dead ends: 14389 [2021-12-14 18:48:13,687 INFO L226 Difference]: Without dead ends: 14387 [2021-12-14 18:48:13,693 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 18:48:13,694 INFO L933 BasicCegarLoop]: 4051 mSDtfsCounter, 3897 mSDsluCounter, 8274 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3902 SdHoareTripleChecker+Valid, 12325 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:13,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3902 Valid, 12325 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2021-12-14 18:48:14,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14383. [2021-12-14 18:48:14,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14383 states, 9401 states have (on average 1.292309328794809) internal successors, (12149), 9801 states have internal predecessors, (12149), 3911 states have call successors, (3911), 1093 states have call predecessors, (3911), 1068 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-14 18:48:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14383 states to 14383 states and 20020 transitions. [2021-12-14 18:48:14,252 INFO L78 Accepts]: Start accepts. Automaton has 14383 states and 20020 transitions. Word has length 95 [2021-12-14 18:48:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:14,252 INFO L470 AbstractCegarLoop]: Abstraction has 14383 states and 20020 transitions. [2021-12-14 18:48:14,252 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 18:48:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 14383 states and 20020 transitions. [2021-12-14 18:48:14,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-14 18:48:14,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:14,255 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 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] [2021-12-14 18:48:14,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 18:48:14,255 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 18:48:14,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash -402394414, now seen corresponding path program 1 times [2021-12-14 18:48:14,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:14,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914236003] [2021-12-14 18:48:14,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:14,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:48:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:48:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 18:48:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:48:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 18:48:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 18:48:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 18:48:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:48:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-14 18:48:14,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:14,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914236003] [2021-12-14 18:48:14,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914236003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:14,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:14,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:14,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950136573] [2021-12-14 18:48:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:14,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:14,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:14,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:14,495 INFO L87 Difference]: Start difference. First operand 14383 states and 20020 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:48:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:14,846 INFO L93 Difference]: Finished difference Result 14389 states and 20025 transitions. [2021-12-14 18:48:14,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:14,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2021-12-14 18:48:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:14,900 INFO L225 Difference]: With dead ends: 14389 [2021-12-14 18:48:14,901 INFO L226 Difference]: Without dead ends: 14387 [2021-12-14 18:48:14,910 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 18:48:14,911 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3974 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:14,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3974 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:14,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2021-12-14 18:48:15,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14387. [2021-12-14 18:48:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14387 states, 9404 states have (on average 1.2922160782645682) internal successors, (12152), 9804 states have internal predecessors, (12152), 3911 states have call successors, (3911), 1094 states have call predecessors, (3911), 1069 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-14 18:48:15,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14387 states to 14387 states and 20023 transitions. [2021-12-14 18:48:15,457 INFO L78 Accepts]: Start accepts. Automaton has 14387 states and 20023 transitions. Word has length 111 [2021-12-14 18:48:15,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:15,458 INFO L470 AbstractCegarLoop]: Abstraction has 14387 states and 20023 transitions. [2021-12-14 18:48:15,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:48:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 14387 states and 20023 transitions. [2021-12-14 18:48:15,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-14 18:48:15,461 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:15,461 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:48:15,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 18:48:15,461 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 18:48:15,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash -464494577, now seen corresponding path program 1 times [2021-12-14 18:48:15,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:15,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378930051] [2021-12-14 18:48:15,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:15,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:48:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 18:48:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 18:48:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 18:48:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 18:48:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:48:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 18:48:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:15,680 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 18:48:15,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:15,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378930051] [2021-12-14 18:48:15,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378930051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:15,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:15,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:15,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170005805] [2021-12-14 18:48:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:15,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:15,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:15,682 INFO L87 Difference]: Start difference. First operand 14387 states and 20023 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, (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 18:48:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:16,044 INFO L93 Difference]: Finished difference Result 14393 states and 20028 transitions. [2021-12-14 18:48:16,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:16,045 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, (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 105 [2021-12-14 18:48:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:16,104 INFO L225 Difference]: With dead ends: 14393 [2021-12-14 18:48:16,104 INFO L226 Difference]: Without dead ends: 14391 [2021-12-14 18:48:16,114 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 18:48:16,115 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:16,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3981 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:16,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14391 states. [2021-12-14 18:48:16,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14391 to 14391. [2021-12-14 18:48:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14391 states, 9407 states have (on average 1.2921228872116508) internal successors, (12155), 9807 states have internal predecessors, (12155), 3911 states have call successors, (3911), 1095 states have call predecessors, (3911), 1070 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-14 18:48:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14391 states to 14391 states and 20026 transitions. [2021-12-14 18:48:16,742 INFO L78 Accepts]: Start accepts. Automaton has 14391 states and 20026 transitions. Word has length 105 [2021-12-14 18:48:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:16,742 INFO L470 AbstractCegarLoop]: Abstraction has 14391 states and 20026 transitions. [2021-12-14 18:48:16,743 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, (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 18:48:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 14391 states and 20026 transitions. [2021-12-14 18:48:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-14 18:48:16,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:16,749 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 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] [2021-12-14 18:48:16,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 18:48:16,750 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 18:48:16,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:16,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1216027278, now seen corresponding path program 1 times [2021-12-14 18:48:16,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:16,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277586957] [2021-12-14 18:48:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:16,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:48:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:48:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 18:48:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:48:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 18:48:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 18:48:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 18:48:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:48:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:48:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:48:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-14 18:48:16,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:16,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277586957] [2021-12-14 18:48:16,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277586957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:16,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:16,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:16,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875763257] [2021-12-14 18:48:16,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:16,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:16,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:16,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:16,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:16,991 INFO L87 Difference]: Start difference. First operand 14391 states and 20026 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 18:48:17,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:17,349 INFO L93 Difference]: Finished difference Result 14397 states and 20031 transitions. [2021-12-14 18:48:17,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:17,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 121 [2021-12-14 18:48:17,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:17,432 INFO L225 Difference]: With dead ends: 14397 [2021-12-14 18:48:17,433 INFO L226 Difference]: Without dead ends: 14395 [2021-12-14 18:48:17,443 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 18:48:17,444 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:17,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3972 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14395 states. [2021-12-14 18:48:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14395 to 14395. [2021-12-14 18:48:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14395 states, 9410 states have (on average 1.292029755579171) internal successors, (12158), 9810 states have internal predecessors, (12158), 3911 states have call successors, (3911), 1096 states have call predecessors, (3911), 1071 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-14 18:48:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14395 states to 14395 states and 20029 transitions. [2021-12-14 18:48:18,072 INFO L78 Accepts]: Start accepts. Automaton has 14395 states and 20029 transitions. Word has length 121 [2021-12-14 18:48:18,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:18,073 INFO L470 AbstractCegarLoop]: Abstraction has 14395 states and 20029 transitions. [2021-12-14 18:48:18,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 18:48:18,073 INFO L276 IsEmpty]: Start isEmpty. Operand 14395 states and 20029 transitions. [2021-12-14 18:48:18,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-14 18:48:18,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:18,077 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:48:18,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 18:48:18,077 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 18:48:18,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:18,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1331395985, now seen corresponding path program 1 times [2021-12-14 18:48:18,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:18,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880238686] [2021-12-14 18:48:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:18,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:48:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 18:48:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 18:48:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 18:48:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 18:48:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:48:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 18:48:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 18:48:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:48:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:18,299 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 18:48:18,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:18,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880238686] [2021-12-14 18:48:18,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880238686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:18,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:18,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:18,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688028515] [2021-12-14 18:48:18,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:18,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:18,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:18,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:18,301 INFO L87 Difference]: Start difference. First operand 14395 states and 20029 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, (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 18:48:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:18,659 INFO L93 Difference]: Finished difference Result 14401 states and 20034 transitions. [2021-12-14 18:48:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:18,660 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, (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 115 [2021-12-14 18:48:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:18,710 INFO L225 Difference]: With dead ends: 14401 [2021-12-14 18:48:18,710 INFO L226 Difference]: Without dead ends: 14397 [2021-12-14 18:48:18,720 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 18:48:18,720 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:18,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3979 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:18,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14397 states. [2021-12-14 18:48:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14397 to 14397. [2021-12-14 18:48:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14397 states, 9412 states have (on average 1.2918614534636634) internal successors, (12159), 9811 states have internal predecessors, (12159), 3911 states have call successors, (3911), 1097 states have call predecessors, (3911), 1071 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-14 18:48:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14397 states to 14397 states and 20030 transitions. [2021-12-14 18:48:19,246 INFO L78 Accepts]: Start accepts. Automaton has 14397 states and 20030 transitions. Word has length 115 [2021-12-14 18:48:19,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:19,247 INFO L470 AbstractCegarLoop]: Abstraction has 14397 states and 20030 transitions. [2021-12-14 18:48:19,247 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, (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 18:48:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 14397 states and 20030 transitions. [2021-12-14 18:48:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-14 18:48:19,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:19,252 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 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] [2021-12-14 18:48:19,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 18:48:19,252 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 18:48:19,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash 490491264, now seen corresponding path program 1 times [2021-12-14 18:48:19,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:19,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217138910] [2021-12-14 18:48:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:19,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 18:48:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 18:48:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:48:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 18:48:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 18:48:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 18:48:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 18:48:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:48:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 18:48:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 18:48:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:48:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:48:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-14 18:48:19,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:19,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217138910] [2021-12-14 18:48:19,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217138910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:19,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:19,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:48:19,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986442713] [2021-12-14 18:48:19,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:19,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:48:19,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:19,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:48:19,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:48:19,579 INFO L87 Difference]: Start difference. First operand 14397 states and 20030 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:48:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:20,123 INFO L93 Difference]: Finished difference Result 16572 states and 22702 transitions. [2021-12-14 18:48:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:48:20,124 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2021-12-14 18:48:20,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:20,181 INFO L225 Difference]: With dead ends: 16572 [2021-12-14 18:48:20,181 INFO L226 Difference]: Without dead ends: 16468 [2021-12-14 18:48:20,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 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 18:48:20,192 INFO L933 BasicCegarLoop]: 4141 mSDtfsCounter, 3659 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3659 SdHoareTripleChecker+Valid, 13294 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:20,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3659 Valid, 13294 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:48:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2021-12-14 18:48:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 12522. [2021-12-14 18:48:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 8234 states have (on average 1.2815156667476317) internal successors, (10552), 8551 states have internal predecessors, (10552), 3266 states have call successors, (3266), 1050 states have call predecessors, (3266), 1020 states have return successors, (3371), 3165 states have call predecessors, (3371), 3263 states have call successors, (3371) [2021-12-14 18:48:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 17189 transitions. [2021-12-14 18:48:20,859 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 17189 transitions. Word has length 120 [2021-12-14 18:48:20,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:20,860 INFO L470 AbstractCegarLoop]: Abstraction has 12522 states and 17189 transitions. [2021-12-14 18:48:20,860 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:48:20,860 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 17189 transitions. [2021-12-14 18:48:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-14 18:48:20,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:20,865 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:48:20,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 18:48:20,866 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 18:48:20,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:20,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1219142567, now seen corresponding path program 1 times [2021-12-14 18:48:20,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:20,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866838702] [2021-12-14 18:48:20,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:20,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:48:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:48:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 18:48:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 18:48:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:48:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-14 18:48:21,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:21,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866838702] [2021-12-14 18:48:21,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866838702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:21,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:21,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:48:21,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066213248] [2021-12-14 18:48:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:21,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:48:21,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:21,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:48:21,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:48:21,192 INFO L87 Difference]: Start difference. First operand 12522 states and 17189 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 18:48:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:24,703 INFO L93 Difference]: Finished difference Result 12831 states and 17677 transitions. [2021-12-14 18:48:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:48:24,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2021-12-14 18:48:24,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:24,742 INFO L225 Difference]: With dead ends: 12831 [2021-12-14 18:48:24,743 INFO L226 Difference]: Without dead ends: 12829 [2021-12-14 18:48:24,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 18:48:24,750 INFO L933 BasicCegarLoop]: 3827 mSDtfsCounter, 3748 mSDsluCounter, 8971 mSDsCounter, 0 mSdLazyCounter, 2858 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4123 SdHoareTripleChecker+Valid, 12798 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 2858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:24,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4123 Valid, 12798 Invalid, 4356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1498 Valid, 2858 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-14 18:48:24,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states. [2021-12-14 18:48:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12621. [2021-12-14 18:48:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12621 states, 8294 states have (on average 1.279479141548107) internal successors, (10612), 8617 states have internal predecessors, (10612), 3278 states have call successors, (3278), 1056 states have call predecessors, (3278), 1047 states have return successors, (3416), 3186 states have call predecessors, (3416), 3275 states have call successors, (3416) [2021-12-14 18:48:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12621 states to 12621 states and 17306 transitions. [2021-12-14 18:48:25,270 INFO L78 Accepts]: Start accepts. Automaton has 12621 states and 17306 transitions. Word has length 155 [2021-12-14 18:48:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:25,271 INFO L470 AbstractCegarLoop]: Abstraction has 12621 states and 17306 transitions. [2021-12-14 18:48:25,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-14 18:48:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 12621 states and 17306 transitions. [2021-12-14 18:48:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-14 18:48:25,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:25,278 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:25,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 18:48:25,278 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 18:48:25,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:25,279 INFO L85 PathProgramCache]: Analyzing trace with hash 630897392, now seen corresponding path program 1 times [2021-12-14 18:48:25,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:25,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815523211] [2021-12-14 18:48:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:25,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 18:48:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 18:48:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 18:48:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:48:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 18:48:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 18:48:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 18:48:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:48:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 18:48:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:48:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:48:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 18:48:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 18:48:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 18:48:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 18:48:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-14 18:48:25,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:25,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815523211] [2021-12-14 18:48:25,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815523211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:25,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:25,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:48:25,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417594940] [2021-12-14 18:48:25,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:25,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:48:25,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:48:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:48:25,602 INFO L87 Difference]: Start difference. First operand 12621 states and 17306 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, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-14 18:48:29,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:29,659 INFO L93 Difference]: Finished difference Result 12843 states and 17677 transitions. [2021-12-14 18:48:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:48:29,659 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, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 192 [2021-12-14 18:48:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:29,758 INFO L225 Difference]: With dead ends: 12843 [2021-12-14 18:48:29,771 INFO L226 Difference]: Without dead ends: 12841 [2021-12-14 18:48:29,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 18:48:29,792 INFO L933 BasicCegarLoop]: 4563 mSDtfsCounter, 3803 mSDsluCounter, 11364 mSDsCounter, 0 mSdLazyCounter, 3879 mSolverCounterSat, 1548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 15927 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1548 IncrementalHoareTripleChecker+Valid, 3879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:29,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4328 Valid, 15927 Invalid, 5427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1548 Valid, 3879 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-14 18:48:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2021-12-14 18:48:30,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 12633. [2021-12-14 18:48:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12633 states, 8303 states have (on average 1.2791762013729977) internal successors, (10621), 8626 states have internal predecessors, (10621), 3278 states have call successors, (3278), 1059 states have call predecessors, (3278), 1050 states have return successors, (3416), 3186 states have call predecessors, (3416), 3275 states have call successors, (3416) [2021-12-14 18:48:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12633 states to 12633 states and 17315 transitions. [2021-12-14 18:48:30,237 INFO L78 Accepts]: Start accepts. Automaton has 12633 states and 17315 transitions. Word has length 192 [2021-12-14 18:48:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:30,240 INFO L470 AbstractCegarLoop]: Abstraction has 12633 states and 17315 transitions. [2021-12-14 18:48:30,240 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, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-14 18:48:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 12633 states and 17315 transitions. [2021-12-14 18:48:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-14 18:48:30,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:30,248 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:30,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 18:48:30,248 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 18:48:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash -827996290, now seen corresponding path program 1 times [2021-12-14 18:48:30,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:30,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827294689] [2021-12-14 18:48:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:30,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-14 18:48:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 18:48:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 18:48:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:48:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 18:48:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:48:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:48:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 18:48:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 18:48:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 18:48:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:48:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:48:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 18:48:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 18:48:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:48:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:48:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:48:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-14 18:48:30,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:30,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827294689] [2021-12-14 18:48:30,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827294689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:30,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:30,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 18:48:30,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653240105] [2021-12-14 18:48:30,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:30,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 18:48:30,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:30,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 18:48:30,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:48:30,511 INFO L87 Difference]: Start difference. First operand 12633 states and 17315 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-14 18:48:41,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:48:41,497 INFO L93 Difference]: Finished difference Result 16962 states and 24872 transitions. [2021-12-14 18:48:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-14 18:48:41,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 187 [2021-12-14 18:48:41,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:48:41,579 INFO L225 Difference]: With dead ends: 16962 [2021-12-14 18:48:41,580 INFO L226 Difference]: Without dead ends: 16907 [2021-12-14 18:48:41,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2021-12-14 18:48:41,596 INFO L933 BasicCegarLoop]: 3928 mSDtfsCounter, 4150 mSDsluCounter, 12996 mSDsCounter, 0 mSdLazyCounter, 9758 mSolverCounterSat, 4337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4402 SdHoareTripleChecker+Valid, 16924 SdHoareTripleChecker+Invalid, 14095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4337 IncrementalHoareTripleChecker+Valid, 9758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:48:41,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4402 Valid, 16924 Invalid, 14095 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4337 Valid, 9758 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2021-12-14 18:48:41,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16907 states. [2021-12-14 18:48:42,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16907 to 8918. [2021-12-14 18:48:42,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8918 states, 5898 states have (on average 1.28195998643608) internal successors, (7561), 6131 states have internal predecessors, (7561), 2266 states have call successors, (2266), 714 states have call predecessors, (2266), 752 states have return successors, (2515), 2243 states have call predecessors, (2515), 2266 states have call successors, (2515) [2021-12-14 18:48:42,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8918 states to 8918 states and 12342 transitions. [2021-12-14 18:48:42,101 INFO L78 Accepts]: Start accepts. Automaton has 8918 states and 12342 transitions. Word has length 187 [2021-12-14 18:48:42,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:48:42,101 INFO L470 AbstractCegarLoop]: Abstraction has 8918 states and 12342 transitions. [2021-12-14 18:48:42,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-14 18:48:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8918 states and 12342 transitions. [2021-12-14 18:48:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-14 18:48:42,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:48:42,109 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:42,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 18:48:42,109 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 18:48:42,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:48:42,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1899381868, now seen corresponding path program 1 times [2021-12-14 18:48:42,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:48:42,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755517630] [2021-12-14 18:48:42,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:48:42,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:48:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:48:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:48:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 18:48:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 18:48:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 18:48:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:48:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:48:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:48:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 18:48:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 18:48:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 18:48:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:48:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 18:48:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:48:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:48:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 18:48:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 18:48:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 18:48:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 18:48:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:48:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:48:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 18:48:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 18:48:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 18:48:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 18:48:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:48:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-14 18:48:42,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:48:42,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755517630] [2021-12-14 18:48:42,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755517630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:48:42,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:48:42,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:48:42,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120404366] [2021-12-14 18:48:42,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:48:42,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:48:42,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:48:42,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:48:42,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:48:42,402 INFO L87 Difference]: Start difference. First operand 8918 states and 12342 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30)