./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 05:17:03,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:17:03,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:17:03,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:17:03,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:17:03,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:17:03,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:17:03,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:17:03,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:17:03,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:17:03,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:17:03,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:17:03,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:17:03,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:17:03,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:17:03,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:17:03,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:17:03,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:17:03,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:17:03,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:17:03,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:17:03,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:17:03,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:17:03,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:17:03,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:17:03,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:17:03,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:17:03,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:17:03,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:17:03,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:17:03,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:17:03,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:17:03,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:17:03,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:17:03,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:17:03,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:17:03,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:17:03,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:17:03,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:17:03,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:17:03,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:17:03,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:17:03,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:17:03,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:17:03,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:17:03,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:17:03,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:17:03,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:17:03,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:17:03,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:17:03,382 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:17:03,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:17:03,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:17:03,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:17:03,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:17:03,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:17:03,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:17:03,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:17:03,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:17:03,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:17:03,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:17:03,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:17:03,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:17:03,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:17:03,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:17:03,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:17:03,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:17:03,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:17:03,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:17:03,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:17:03,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:17:03,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:17:03,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2021-12-28 05:17:03,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:17:03,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:17:03,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:17:03,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:17:03,694 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:17:03,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-12-28 05:17:03,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02072ef20/466baf3afec042799d02a098d1128f05/FLAG866a44d1b [2021-12-28 05:17:04,436 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:17:04,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-12-28 05:17:04,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02072ef20/466baf3afec042799d02a098d1128f05/FLAG866a44d1b [2021-12-28 05:17:04,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02072ef20/466baf3afec042799d02a098d1128f05 [2021-12-28 05:17:04,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:17:04,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:17:04,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:17:04,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:17:04,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:17:04,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:17:04" (1/1) ... [2021-12-28 05:17:04,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cae418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:04, skipping insertion in model container [2021-12-28 05:17:04,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:17:04" (1/1) ... [2021-12-28 05:17:04,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:17:04,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:17:06,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2021-12-28 05:17:06,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2021-12-28 05:17:06,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2021-12-28 05:17:06,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2021-12-28 05:17:06,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:17:06,709 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:17:07,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2021-12-28 05:17:07,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2021-12-28 05:17:07,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2021-12-28 05:17:07,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2021-12-28 05:17:07,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:17:07,210 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:17:07,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07 WrapperNode [2021-12-28 05:17:07,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:17:07,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:17:07,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:17:07,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:17:07,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,467 INFO L137 Inliner]: procedures = 431, calls = 2260, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4820 [2021-12-28 05:17:07,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:17:07,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:17:07,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:17:07,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:17:07,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:17:07,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:17:07,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:17:07,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:17:07,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (1/1) ... [2021-12-28 05:17:07,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:17:07,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:17:07,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 05:17:07,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 05:17:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-12-28 05:17:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-12-28 05:17:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 05:17:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 05:17:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 05:17:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 05:17:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 05:17:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 05:17:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-12-28 05:17:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-12-28 05:17:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 05:17:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 05:17:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-12-28 05:17:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-12-28 05:17:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-12-28 05:17:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-12-28 05:17:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 05:17:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 05:17:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 05:17:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 05:17:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-12-28 05:17:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-12-28 05:17:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-12-28 05:17:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-12-28 05:17:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-12-28 05:17:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-12-28 05:17:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-12-28 05:17:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-12-28 05:17:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 05:17:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 05:17:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 05:17:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 05:17:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 05:17:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 05:17:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 05:17:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 05:17:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 05:17:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 05:17:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:17:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 05:17:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 05:17:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-12-28 05:17:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-12-28 05:17:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2021-12-28 05:17:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2021-12-28 05:17:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_65 [2021-12-28 05:17:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_65 [2021-12-28 05:17:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 05:17:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 05:17:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-12-28 05:17:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-12-28 05:17:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-28 05:17:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-28 05:17:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2021-12-28 05:17:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2021-12-28 05:17:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2021-12-28 05:17:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2021-12-28 05:17:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-12-28 05:17:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-12-28 05:17:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 05:17:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 05:17:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:17:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 05:17:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 05:17:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 05:17:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 05:17:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 05:17:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 05:17:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-28 05:17:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-28 05:17:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-12-28 05:17:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-12-28 05:17:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2021-12-28 05:17:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2021-12-28 05:17:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-12-28 05:17:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-12-28 05:17:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-12-28 05:17:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-12-28 05:17:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 05:17:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 05:17:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 05:17:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 05:17:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-12-28 05:17:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-12-28 05:17:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-12-28 05:17:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-12-28 05:17:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-12-28 05:17:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-12-28 05:17:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 05:17:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 05:17:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 05:17:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-12-28 05:17:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-12-28 05:17:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-12-28 05:17:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-12-28 05:17:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-28 05:17:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-28 05:17:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:17:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 05:17:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 05:17:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 05:17:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 05:17:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:17:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 05:17:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:17:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:17:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-12-28 05:17:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-12-28 05:17:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-28 05:17:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-28 05:17:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 05:17:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 05:17:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 05:17:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 05:17:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-12-28 05:17:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-12-28 05:17:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-28 05:17:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-28 05:17:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-12-28 05:17:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-12-28 05:17:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-12-28 05:17:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-12-28 05:17:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:17:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:17:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-28 05:17:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-28 05:17:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2021-12-28 05:17:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2021-12-28 05:17:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 05:17:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 05:17:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 05:17:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 05:17:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 05:17:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 05:17:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-28 05:17:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-28 05:17:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-12-28 05:17:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-12-28 05:17:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-12-28 05:17:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-12-28 05:17:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 05:17:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 05:17:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2021-12-28 05:17:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2021-12-28 05:17:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 05:17:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 05:17:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 05:17:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 05:17:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-28 05:17:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-28 05:17:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2021-12-28 05:17:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2021-12-28 05:17:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:17:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-12-28 05:17:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-12-28 05:17:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 05:17:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 05:17:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:17:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 05:17:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 05:17:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-12-28 05:17:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-12-28 05:17:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:17:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-12-28 05:17:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-12-28 05:17:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-12-28 05:17:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-12-28 05:17:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-28 05:17:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-28 05:17:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 05:17:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 05:17:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-28 05:17:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-28 05:17:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 05:17:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 05:17:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-28 05:17:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-28 05:17:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-12-28 05:17:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-12-28 05:17:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-12-28 05:17:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-12-28 05:17:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 05:17:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 05:17:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 05:17:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 05:17:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-12-28 05:17:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-12-28 05:17:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 05:17:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 05:17:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-12-28 05:17:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-12-28 05:17:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-12-28 05:17:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-12-28 05:17:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:17:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-12-28 05:17:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-12-28 05:17:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:17:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:17:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-12-28 05:17:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-12-28 05:17:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 05:17:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 05:17:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-12-28 05:17:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-12-28 05:17:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-12-28 05:17:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-12-28 05:17:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2021-12-28 05:17:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2021-12-28 05:17:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-12-28 05:17:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-12-28 05:17:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 05:17:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 05:17:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2021-12-28 05:17:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2021-12-28 05:17:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-28 05:17:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-28 05:17:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-28 05:17:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-28 05:17:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-28 05:17:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-28 05:17:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:17:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-28 05:17:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-28 05:17:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-28 05:17:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 05:17:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 05:17:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-28 05:17:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-28 05:17:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-28 05:17:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-28 05:17:08,537 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:17:08,539 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:17:09,202 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 05:17:10,839 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume 0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616; [2021-12-28 05:17:10,840 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume !(0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616); [2021-12-28 05:17:10,840 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2021-12-28 05:17:10,840 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2021-12-28 05:17:10,840 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976-2: SUMMARY for call tlan_eisa_probe_#t~ret340#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-28 05:17:10,841 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2021-12-28 05:17:10,841 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume !(16 == ~debug~0); [2021-12-28 05:17:10,841 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-12-28 05:17:10,841 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-12-28 05:17:10,843 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret336#1;havoc tlan_eisa_probe_#t~ret336#1; [2021-12-28 05:17:10,843 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret336#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-28 05:17:10,843 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7014: SUMMARY for call tlan_eisa_probe_#t~ret341#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2021-12-28 05:17:10,843 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2021-12-28 05:17:10,843 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2021-12-28 05:17:10,844 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6983: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret340#1;havoc tlan_eisa_probe_#t~ret340#1; [2021-12-28 05:17:10,844 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-12-28 05:17:10,845 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume 0 != ~bitwiseAnd(~debug~0, 16); [2021-12-28 05:17:10,845 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-12-28 05:17:10,849 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-28 05:17:10,849 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume !(16 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-28 05:17:10,849 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~nondet331#1; [2021-12-28 05:17:10,849 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920: SUMMARY for call tlan_eisa_probe_#t~ret330#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-28 05:17:10,849 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6987: tlan_eisa_probe_~irq~0#1 := 5; [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021: assume -2147483648 <= tlan_eisa_probe_#t~ret341#1 && tlan_eisa_probe_#t~ret341#1 <= 2147483647;tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret341#1;havoc tlan_eisa_probe_#t~ret341#1; [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume !(32 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6991: tlan_eisa_probe_~irq~0#1 := 9; [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume 0 != ~bitwiseAnd(~debug~0, 16);havoc tlan_eisa_probe_#t~nondet334#1; [2021-12-28 05:17:10,850 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume !(0 != ~bitwiseAnd(~debug~0, 16)); [2021-12-28 05:17:10,851 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2021-12-28 05:17:10,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2021-12-28 05:17:10,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~nondet333#1; [2021-12-28 05:17:10,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-28 05:17:10,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-28 05:17:10,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume !(64 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-28 05:17:10,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6961: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6995: tlan_eisa_probe_~irq~0#1 := 10; [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume !(128 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-1: call tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset;havoc tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset; [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6999: tlan_eisa_probe_~irq~0#1 := 11; [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2021-12-28 05:17:10,855 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7033-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet342#1; [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume !(16 == ~debug~0); [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet343#1; [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume !(16 == ~debug~0); [2021-12-28 05:17:10,856 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2021-12-28 05:17:10,944 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:17:10,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:17:10,965 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 05:17:10,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:17:10 BoogieIcfgContainer [2021-12-28 05:17:10,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:17:10,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:17:10,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:17:10,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:17:10,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:17:04" (1/3) ... [2021-12-28 05:17:10,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3882cb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:17:10, skipping insertion in model container [2021-12-28 05:17:10,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:17:07" (2/3) ... [2021-12-28 05:17:10,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3882cb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:17:10, skipping insertion in model container [2021-12-28 05:17:10,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:17:10" (3/3) ... [2021-12-28 05:17:10,975 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-12-28 05:17:10,979 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:17:10,980 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-28 05:17:11,023 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:17:11,029 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 05:17:11,029 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-28 05:17:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) [2021-12-28 05:17:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-28 05:17:11,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:11,089 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:11,090 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:11,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:11,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1354900798, now seen corresponding path program 1 times [2021-12-28 05:17:11,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:11,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901963561] [2021-12-28 05:17:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:11,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:17:11,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:11,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901963561] [2021-12-28 05:17:11,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901963561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:11,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:11,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:11,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448202868] [2021-12-28 05:17:11,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:11,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:11,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:11,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:11,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:11,700 INFO L87 Difference]: Start difference. First operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:17:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:11,984 INFO L93 Difference]: Finished difference Result 3951 states and 5711 transitions. [2021-12-28 05:17:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2021-12-28 05:17:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:12,007 INFO L225 Difference]: With dead ends: 3951 [2021-12-28 05:17:12,007 INFO L226 Difference]: Without dead ends: 1979 [2021-12-28 05:17:12,028 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 [2021-12-28 05:17:12,030 INFO L933 BasicCegarLoop]: 2779 mSDtfsCounter, 2754 mSDsluCounter, 5545 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 8324 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:12,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 8324 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2021-12-28 05:17:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1979. [2021-12-28 05:17:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1272 states have (on average 1.2429245283018868) internal successors, (1581), 1327 states have internal predecessors, (1581), 597 states have call successors, (597), 108 states have call predecessors, (597), 107 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-28 05:17:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2772 transitions. [2021-12-28 05:17:12,163 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2772 transitions. Word has length 52 [2021-12-28 05:17:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:12,163 INFO L470 AbstractCegarLoop]: Abstraction has 1979 states and 2772 transitions. [2021-12-28 05:17:12,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:17:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2772 transitions. [2021-12-28 05:17:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-28 05:17:12,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:12,166 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:12,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:17:12,166 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)] === [2021-12-28 05:17:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:12,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2057662250, now seen corresponding path program 1 times [2021-12-28 05:17:12,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:12,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794248176] [2021-12-28 05:17:12,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:12,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:17:12,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:12,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794248176] [2021-12-28 05:17:12,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794248176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:12,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:12,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:12,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615123328] [2021-12-28 05:17:12,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:12,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:12,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:12,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:12,344 INFO L87 Difference]: Start difference. First operand 1979 states and 2772 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 05:17:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:12,493 INFO L93 Difference]: Finished difference Result 1985 states and 2777 transitions. [2021-12-28 05:17:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:12,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2021-12-28 05:17:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:12,505 INFO L225 Difference]: With dead ends: 1985 [2021-12-28 05:17:12,506 INFO L226 Difference]: Without dead ends: 1983 [2021-12-28 05:17:12,507 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 [2021-12-28 05:17:12,508 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2747 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:12,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2747 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:12,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-12-28 05:17:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1983. [2021-12-28 05:17:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1275 states have (on average 1.2423529411764707) internal successors, (1584), 1330 states have internal predecessors, (1584), 597 states have call successors, (597), 109 states have call predecessors, (597), 108 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-28 05:17:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2775 transitions. [2021-12-28 05:17:12,590 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2775 transitions. Word has length 57 [2021-12-28 05:17:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:12,591 INFO L470 AbstractCegarLoop]: Abstraction has 1983 states and 2775 transitions. [2021-12-28 05:17:12,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 05:17:12,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2775 transitions. [2021-12-28 05:17:12,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-28 05:17:12,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:12,593 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:12,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:17:12,593 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)] === [2021-12-28 05:17:12,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:12,593 INFO L85 PathProgramCache]: Analyzing trace with hash -721576190, now seen corresponding path program 1 times [2021-12-28 05:17:12,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:12,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212812290] [2021-12-28 05:17:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:12,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 05:17:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-28 05:17:12,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:12,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212812290] [2021-12-28 05:17:12,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212812290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:12,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:12,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:12,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162173983] [2021-12-28 05:17:12,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:12,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:12,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:12,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:12,762 INFO L87 Difference]: Start difference. First operand 1983 states and 2775 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 05:17:12,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:12,882 INFO L93 Difference]: Finished difference Result 1989 states and 2780 transitions. [2021-12-28 05:17:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:12,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-12-28 05:17:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:12,894 INFO L225 Difference]: With dead ends: 1989 [2021-12-28 05:17:12,894 INFO L226 Difference]: Without dead ends: 1987 [2021-12-28 05:17:12,896 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 [2021-12-28 05:17:12,897 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:12,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:12,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-12-28 05:17:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1987. [2021-12-28 05:17:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1278 states have (on average 1.2417840375586855) internal successors, (1587), 1333 states have internal predecessors, (1587), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-28 05:17:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2778 transitions. [2021-12-28 05:17:12,997 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2778 transitions. Word has length 62 [2021-12-28 05:17:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:12,997 INFO L470 AbstractCegarLoop]: Abstraction has 1987 states and 2778 transitions. [2021-12-28 05:17:12,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 05:17:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2778 transitions. [2021-12-28 05:17:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 05:17:12,999 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:13,000 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:13,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:17:13,000 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)] === [2021-12-28 05:17:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:13,001 INFO L85 PathProgramCache]: Analyzing trace with hash 38118422, now seen corresponding path program 1 times [2021-12-28 05:17:13,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:13,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531502734] [2021-12-28 05:17:13,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:13,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 05:17:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:17:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-28 05:17:13,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:13,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531502734] [2021-12-28 05:17:13,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531502734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:13,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:13,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:13,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880821686] [2021-12-28 05:17:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:13,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:13,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:13,187 INFO L87 Difference]: Start difference. First operand 1987 states and 2778 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 05:17:13,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:13,297 INFO L93 Difference]: Finished difference Result 1993 states and 2783 transitions. [2021-12-28 05:17:13,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:13,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-12-28 05:17:13,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:13,308 INFO L225 Difference]: With dead ends: 1993 [2021-12-28 05:17:13,308 INFO L226 Difference]: Without dead ends: 1991 [2021-12-28 05:17:13,311 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 [2021-12-28 05:17:13,312 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:13,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2745 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2021-12-28 05:17:13,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2021-12-28 05:17:13,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1281 states have (on average 1.2412177985948478) internal successors, (1590), 1336 states have internal predecessors, (1590), 597 states have call successors, (597), 111 states have call predecessors, (597), 110 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-28 05:17:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2781 transitions. [2021-12-28 05:17:13,404 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2781 transitions. Word has length 67 [2021-12-28 05:17:13,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:13,406 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 2781 transitions. [2021-12-28 05:17:13,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 05:17:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2781 transitions. [2021-12-28 05:17:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-28 05:17:13,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:13,408 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:13,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 05:17:13,409 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)] === [2021-12-28 05:17:13,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:13,409 INFO L85 PathProgramCache]: Analyzing trace with hash -118986273, now seen corresponding path program 1 times [2021-12-28 05:17:13,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178525162] [2021-12-28 05:17:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:13,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 05:17:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:17:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:17:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:17:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:17:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-28 05:17:13,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:13,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178525162] [2021-12-28 05:17:13,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178525162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:13,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:13,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:13,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839153188] [2021-12-28 05:17:13,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:13,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:13,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:13,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:13,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:13,636 INFO L87 Difference]: Start difference. First operand 1991 states and 2781 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 05:17:13,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:13,748 INFO L93 Difference]: Finished difference Result 1997 states and 2786 transitions. [2021-12-28 05:17:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2021-12-28 05:17:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:13,758 INFO L225 Difference]: With dead ends: 1997 [2021-12-28 05:17:13,758 INFO L226 Difference]: Without dead ends: 1995 [2021-12-28 05:17:13,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:13,760 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:13,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2737 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:13,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2021-12-28 05:17:13,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2021-12-28 05:17:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1284 states have (on average 1.2406542056074767) internal successors, (1593), 1339 states have internal predecessors, (1593), 597 states have call successors, (597), 112 states have call predecessors, (597), 111 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-28 05:17:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2784 transitions. [2021-12-28 05:17:13,849 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2784 transitions. Word has length 86 [2021-12-28 05:17:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:13,849 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 2784 transitions. [2021-12-28 05:17:13,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 05:17:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2784 transitions. [2021-12-28 05:17:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-28 05:17:13,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:13,851 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:13,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 05:17:13,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash -363636906, now seen corresponding path program 1 times [2021-12-28 05:17:13,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:13,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52253088] [2021-12-28 05:17:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:13,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 05:17:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:17:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 05:17:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 05:17:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-28 05:17:14,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:14,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52253088] [2021-12-28 05:17:14,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52253088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:14,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:14,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:14,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927747287] [2021-12-28 05:17:14,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:14,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:14,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:14,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:14,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:14,018 INFO L87 Difference]: Start difference. First operand 1995 states and 2784 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 05:17:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:14,118 INFO L93 Difference]: Finished difference Result 2001 states and 2789 transitions. [2021-12-28 05:17:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:14,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-12-28 05:17:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:14,128 INFO L225 Difference]: With dead ends: 2001 [2021-12-28 05:17:14,128 INFO L226 Difference]: Without dead ends: 1999 [2021-12-28 05:17:14,129 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 [2021-12-28 05:17:14,130 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2737 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:14,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2743 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2021-12-28 05:17:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2021-12-28 05:17:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1287 states have (on average 1.24009324009324) internal successors, (1596), 1342 states have internal predecessors, (1596), 597 states have call successors, (597), 113 states have call predecessors, (597), 112 states have return successors, (594), 576 states have call predecessors, (594), 594 states have call successors, (594) [2021-12-28 05:17:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2787 transitions. [2021-12-28 05:17:14,212 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2787 transitions. Word has length 77 [2021-12-28 05:17:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:14,213 INFO L470 AbstractCegarLoop]: Abstraction has 1999 states and 2787 transitions. [2021-12-28 05:17:14,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 05:17:14,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2787 transitions. [2021-12-28 05:17:14,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 05:17:14,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:14,214 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:14,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 05:17:14,214 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:14,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:14,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2056173694, now seen corresponding path program 1 times [2021-12-28 05:17:14,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:14,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567892977] [2021-12-28 05:17:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:14,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 05:17:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:17:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 05:17:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 05:17:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 05:17:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-28 05:17:14,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567892977] [2021-12-28 05:17:14,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567892977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:14,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:14,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:14,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425059057] [2021-12-28 05:17:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:14,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:14,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:14,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:14,357 INFO L87 Difference]: Start difference. First operand 1999 states and 2787 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 05:17:14,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:14,521 INFO L93 Difference]: Finished difference Result 3638 states and 5219 transitions. [2021-12-28 05:17:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 05:17:14,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2021-12-28 05:17:14,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:14,544 INFO L225 Difference]: With dead ends: 3638 [2021-12-28 05:17:14,545 INFO L226 Difference]: Without dead ends: 3636 [2021-12-28 05:17:14,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:14,549 INFO L933 BasicCegarLoop]: 3679 mSDtfsCounter, 2361 mSDsluCounter, 10121 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 13800 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:14,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2366 Valid, 13800 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:14,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-12-28 05:17:14,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3628. [2021-12-28 05:17:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 2342 states have (on average 1.2369769427839454) internal successors, (2897), 2448 states have internal predecessors, (2897), 1066 states have call successors, (1066), 224 states have call predecessors, (1066), 217 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-28 05:17:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5212 transitions. [2021-12-28 05:17:14,724 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5212 transitions. Word has length 82 [2021-12-28 05:17:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:14,724 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5212 transitions. [2021-12-28 05:17:14,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 05:17:14,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5212 transitions. [2021-12-28 05:17:14,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-28 05:17:14,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:14,726 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:14,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 05:17:14,726 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:14,727 INFO L85 PathProgramCache]: Analyzing trace with hash 444487257, now seen corresponding path program 1 times [2021-12-28 05:17:14,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:14,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035607836] [2021-12-28 05:17:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:14,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 05:17:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:17:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:17:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:17:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:17:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:17:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:17:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 05:17:14,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:14,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035607836] [2021-12-28 05:17:14,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035607836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:14,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:14,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:14,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012728395] [2021-12-28 05:17:14,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:14,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:14,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:14,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:14,890 INFO L87 Difference]: Start difference. First operand 3628 states and 5212 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 05:17:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:15,063 INFO L93 Difference]: Finished difference Result 3638 states and 5221 transitions. [2021-12-28 05:17:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-12-28 05:17:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:15,080 INFO L225 Difference]: With dead ends: 3638 [2021-12-28 05:17:15,080 INFO L226 Difference]: Without dead ends: 3636 [2021-12-28 05:17:15,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:15,084 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:15,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2734 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-12-28 05:17:15,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3636. [2021-12-28 05:17:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 2348 states have (on average 1.2363713798977853) internal successors, (2903), 2454 states have internal predecessors, (2903), 1066 states have call successors, (1066), 226 states have call predecessors, (1066), 219 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-28 05:17:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5218 transitions. [2021-12-28 05:17:15,248 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5218 transitions. Word has length 101 [2021-12-28 05:17:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:15,248 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 5218 transitions. [2021-12-28 05:17:15,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 05:17:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5218 transitions. [2021-12-28 05:17:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-28 05:17:15,250 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:15,250 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:15,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 05:17:15,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:15,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash 145121759, now seen corresponding path program 1 times [2021-12-28 05:17:15,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:15,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54753062] [2021-12-28 05:17:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:15,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 05:17:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:17:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:17:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:17:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:17:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:17:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:17:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:17:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-28 05:17:15,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:15,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54753062] [2021-12-28 05:17:15,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54753062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:15,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:15,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:15,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311156178] [2021-12-28 05:17:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:15,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:15,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:15,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:15,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:15,412 INFO L87 Difference]: Start difference. First operand 3636 states and 5218 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:17:15,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:15,554 INFO L93 Difference]: Finished difference Result 3646 states and 5227 transitions. [2021-12-28 05:17:15,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:15,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2021-12-28 05:17:15,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:15,572 INFO L225 Difference]: With dead ends: 3646 [2021-12-28 05:17:15,573 INFO L226 Difference]: Without dead ends: 3644 [2021-12-28 05:17:15,576 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 [2021-12-28 05:17:15,576 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:15,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2733 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:15,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2021-12-28 05:17:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 3644. [2021-12-28 05:17:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2354 states have (on average 1.2357689039932032) internal successors, (2909), 2460 states have internal predecessors, (2909), 1066 states have call successors, (1066), 228 states have call predecessors, (1066), 221 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-28 05:17:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 5224 transitions. [2021-12-28 05:17:15,724 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 5224 transitions. Word has length 106 [2021-12-28 05:17:15,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:15,725 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 5224 transitions. [2021-12-28 05:17:15,725 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) [2021-12-28 05:17:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 5224 transitions. [2021-12-28 05:17:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 05:17:15,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:15,726 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:15,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 05:17:15,726 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1569960409, now seen corresponding path program 1 times [2021-12-28 05:17:15,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:15,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223593319] [2021-12-28 05:17:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:15,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 05:17:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:17:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:17:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:17:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:17:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:17:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:17:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:17:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:17:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-28 05:17:15,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:15,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223593319] [2021-12-28 05:17:15,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223593319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:15,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:15,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:15,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207615356] [2021-12-28 05:17:15,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:15,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:15,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:15,963 INFO L87 Difference]: Start difference. First operand 3644 states and 5224 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:17:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:16,123 INFO L93 Difference]: Finished difference Result 3654 states and 5233 transitions. [2021-12-28 05:17:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:16,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2021-12-28 05:17:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:16,141 INFO L225 Difference]: With dead ends: 3654 [2021-12-28 05:17:16,141 INFO L226 Difference]: Without dead ends: 3652 [2021-12-28 05:17:16,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:16,144 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:16,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2732 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2021-12-28 05:17:16,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3652. [2021-12-28 05:17:16,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2360 states have (on average 1.2351694915254237) internal successors, (2915), 2466 states have internal predecessors, (2915), 1066 states have call successors, (1066), 230 states have call predecessors, (1066), 223 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-28 05:17:16,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5230 transitions. [2021-12-28 05:17:16,300 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5230 transitions. Word has length 111 [2021-12-28 05:17:16,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:16,300 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5230 transitions. [2021-12-28 05:17:16,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:17:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5230 transitions. [2021-12-28 05:17:16,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-28 05:17:16,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:16,302 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:16,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 05:17:16,302 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:16,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:16,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1906809377, now seen corresponding path program 1 times [2021-12-28 05:17:16,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:16,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200700203] [2021-12-28 05:17:16,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:16,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 05:17:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:17:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:17:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:17:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:17:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:17:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:17:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:17:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:17:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 05:17:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-28 05:17:16,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:16,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200700203] [2021-12-28 05:17:16,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200700203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:16,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:16,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:16,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531844836] [2021-12-28 05:17:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:16,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:16,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:16,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:16,467 INFO L87 Difference]: Start difference. First operand 3652 states and 5230 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:17:16,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:16,623 INFO L93 Difference]: Finished difference Result 3662 states and 5239 transitions. [2021-12-28 05:17:16,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:16,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2021-12-28 05:17:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:16,641 INFO L225 Difference]: With dead ends: 3662 [2021-12-28 05:17:16,641 INFO L226 Difference]: Without dead ends: 3658 [2021-12-28 05:17:16,644 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 [2021-12-28 05:17:16,644 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2730 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:16,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2731 Valid, 8288 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2021-12-28 05:17:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3658. [2021-12-28 05:17:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 2365 states have (on average 1.2342494714587737) internal successors, (2919), 2470 states have internal predecessors, (2919), 1066 states have call successors, (1066), 232 states have call predecessors, (1066), 224 states have return successors, (1249), 1011 states have call predecessors, (1249), 1060 states have call successors, (1249) [2021-12-28 05:17:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 5234 transitions. [2021-12-28 05:17:16,850 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 5234 transitions. Word has length 116 [2021-12-28 05:17:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:16,850 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 5234 transitions. [2021-12-28 05:17:16,850 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) [2021-12-28 05:17:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5234 transitions. [2021-12-28 05:17:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-28 05:17:16,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:16,852 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:16,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 05:17:16,853 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)] === [2021-12-28 05:17:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash 729559318, now seen corresponding path program 1 times [2021-12-28 05:17:16,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:16,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627580423] [2021-12-28 05:17:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:16,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:17:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:17:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 05:17:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 05:17:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 05:17:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:17:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 05:17:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 05:17:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:16,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 05:17:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 05:17:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 05:17:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 05:17:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 05:17:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 05:17:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-28 05:17:17,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:17,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627580423] [2021-12-28 05:17:17,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627580423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:17,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:17,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:17:17,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039008399] [2021-12-28 05:17:17,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:17,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:17:17,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:17,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:17:17,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:17:17,035 INFO L87 Difference]: Start difference. First operand 3658 states and 5234 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:17:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:17,204 INFO L93 Difference]: Finished difference Result 3664 states and 5239 transitions. [2021-12-28 05:17:17,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:17:17,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2021-12-28 05:17:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:17,219 INFO L225 Difference]: With dead ends: 3664 [2021-12-28 05:17:17,219 INFO L226 Difference]: Without dead ends: 3571 [2021-12-28 05:17:17,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:17,223 INFO L933 BasicCegarLoop]: 2770 mSDtfsCounter, 2737 mSDsluCounter, 5521 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 8291 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:17,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2737 Valid, 8291 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:17:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-12-28 05:17:17,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3571. [2021-12-28 05:17:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2314 states have (on average 1.2376836646499567) internal successors, (2864), 2417 states have internal predecessors, (2864), 1046 states have call successors, (1046), 215 states have call predecessors, (1046), 208 states have return successors, (1232), 994 states have call predecessors, (1232), 1043 states have call successors, (1232) [2021-12-28 05:17:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 5142 transitions. [2021-12-28 05:17:17,402 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 5142 transitions. Word has length 107 [2021-12-28 05:17:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:17,403 INFO L470 AbstractCegarLoop]: Abstraction has 3571 states and 5142 transitions. [2021-12-28 05:17:17,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 05:17:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 5142 transitions. [2021-12-28 05:17:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-28 05:17:17,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:17,405 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:17,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 05:17:17,424 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:17,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1764869361, now seen corresponding path program 1 times [2021-12-28 05:17:17,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:17,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406140739] [2021-12-28 05:17:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:17,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:17:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 05:17:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:17:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:17:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:17:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:17:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:17:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 05:17:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:17:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-28 05:17:17,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:17,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406140739] [2021-12-28 05:17:17,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406140739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:17,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:17,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 05:17:17,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865541591] [2021-12-28 05:17:17,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:17,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 05:17:17,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:17,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 05:17:17,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:17,739 INFO L87 Difference]: Start difference. First operand 3571 states and 5142 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:17:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:30,019 INFO L93 Difference]: Finished difference Result 4940 states and 7647 transitions. [2021-12-28 05:17:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 05:17:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2021-12-28 05:17:30,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:30,041 INFO L225 Difference]: With dead ends: 4940 [2021-12-28 05:17:30,041 INFO L226 Difference]: Without dead ends: 4938 [2021-12-28 05:17:30,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-12-28 05:17:30,046 INFO L933 BasicCegarLoop]: 2959 mSDtfsCounter, 5576 mSDsluCounter, 6873 mSDsCounter, 0 mSdLazyCounter, 11175 mSolverCounterSat, 4814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6097 SdHoareTripleChecker+Valid, 9832 SdHoareTripleChecker+Invalid, 15989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4814 IncrementalHoareTripleChecker+Valid, 11175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:30,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6097 Valid, 9832 Invalid, 15989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4814 Valid, 11175 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2021-12-28 05:17:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4938 states. [2021-12-28 05:17:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4938 to 4626. [2021-12-28 05:17:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4626 states, 3032 states have (on average 1.2519788918205805) internal successors, (3796), 3168 states have internal predecessors, (3796), 1317 states have call successors, (1317), 215 states have call predecessors, (1317), 274 states have return successors, (1940), 1318 states have call predecessors, (1940), 1314 states have call successors, (1940) [2021-12-28 05:17:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 7053 transitions. [2021-12-28 05:17:30,320 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 7053 transitions. Word has length 150 [2021-12-28 05:17:30,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:30,321 INFO L470 AbstractCegarLoop]: Abstraction has 4626 states and 7053 transitions. [2021-12-28 05:17:30,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:17:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 7053 transitions. [2021-12-28 05:17:30,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-28 05:17:30,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:30,324 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:30,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 05:17:30,325 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:30,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:30,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2143733695, now seen corresponding path program 1 times [2021-12-28 05:17:30,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:30,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394687608] [2021-12-28 05:17:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:30,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:17:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 05:17:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:17:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:17:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:17:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:17:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:17:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 05:17:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:17:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:17:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:17:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-28 05:17:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-28 05:17:30,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:30,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394687608] [2021-12-28 05:17:30,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394687608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:30,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:30,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 05:17:30,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980110761] [2021-12-28 05:17:30,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:30,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 05:17:30,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 05:17:30,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:17:30,614 INFO L87 Difference]: Start difference. First operand 4626 states and 7053 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-28 05:17:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:43,830 INFO L93 Difference]: Finished difference Result 6343 states and 10298 transitions. [2021-12-28 05:17:43,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 05:17:43,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 175 [2021-12-28 05:17:43,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:43,866 INFO L225 Difference]: With dead ends: 6343 [2021-12-28 05:17:43,867 INFO L226 Difference]: Without dead ends: 6341 [2021-12-28 05:17:43,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-12-28 05:17:43,873 INFO L933 BasicCegarLoop]: 4561 mSDtfsCounter, 5631 mSDsluCounter, 10051 mSDsCounter, 0 mSdLazyCounter, 12405 mSolverCounterSat, 5975 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6069 SdHoareTripleChecker+Valid, 14612 SdHoareTripleChecker+Invalid, 18380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5975 IncrementalHoareTripleChecker+Valid, 12405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:43,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6069 Valid, 14612 Invalid, 18380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5975 Valid, 12405 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2021-12-28 05:17:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6341 states. [2021-12-28 05:17:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6341 to 4643. [2021-12-28 05:17:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 3042 states have (on average 1.2508218277449046) internal successors, (3805), 3176 states have internal predecessors, (3805), 1320 states have call successors, (1320), 215 states have call predecessors, (1320), 278 states have return successors, (1860), 1327 states have call predecessors, (1860), 1317 states have call successors, (1860) [2021-12-28 05:17:44,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6985 transitions. [2021-12-28 05:17:44,150 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6985 transitions. Word has length 175 [2021-12-28 05:17:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:44,151 INFO L470 AbstractCegarLoop]: Abstraction has 4643 states and 6985 transitions. [2021-12-28 05:17:44,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-28 05:17:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6985 transitions. [2021-12-28 05:17:44,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-28 05:17:44,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:44,155 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:44,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 05:17:44,156 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:44,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash 610989074, now seen corresponding path program 1 times [2021-12-28 05:17:44,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:44,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618019839] [2021-12-28 05:17:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:44,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:17:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 05:17:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:17:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:17:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:17:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:17:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:17:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 05:17:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:17:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:17:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:17:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-28 05:17:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-28 05:17:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 05:17:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 05:17:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 05:17:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 05:17:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-28 05:17:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-28 05:17:44,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:44,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618019839] [2021-12-28 05:17:44,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618019839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:44,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:44,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 05:17:44,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198815711] [2021-12-28 05:17:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:44,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 05:17:44,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 05:17:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:17:44,581 INFO L87 Difference]: Start difference. First operand 4643 states and 6985 transitions. Second operand has 7 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-28 05:17:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:50,533 INFO L93 Difference]: Finished difference Result 10615 states and 16692 transitions. [2021-12-28 05:17:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:17:50,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 229 [2021-12-28 05:17:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:50,571 INFO L225 Difference]: With dead ends: 10615 [2021-12-28 05:17:50,572 INFO L226 Difference]: Without dead ends: 5993 [2021-12-28 05:17:50,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-28 05:17:50,611 INFO L933 BasicCegarLoop]: 2413 mSDtfsCounter, 2662 mSDsluCounter, 4441 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 3034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 6854 SdHoareTripleChecker+Invalid, 8391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3034 IncrementalHoareTripleChecker+Valid, 5357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:50,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3099 Valid, 6854 Invalid, 8391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3034 Valid, 5357 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-28 05:17:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-12-28 05:17:50,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 4646. [2021-12-28 05:17:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4646 states, 3045 states have (on average 1.2505747126436781) internal successors, (3808), 3179 states have internal predecessors, (3808), 1320 states have call successors, (1320), 215 states have call predecessors, (1320), 278 states have return successors, (1860), 1327 states have call predecessors, (1860), 1317 states have call successors, (1860) [2021-12-28 05:17:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4646 states to 4646 states and 6988 transitions. [2021-12-28 05:17:50,938 INFO L78 Accepts]: Start accepts. Automaton has 4646 states and 6988 transitions. Word has length 229 [2021-12-28 05:17:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:50,938 INFO L470 AbstractCegarLoop]: Abstraction has 4646 states and 6988 transitions. [2021-12-28 05:17:50,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-28 05:17:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4646 states and 6988 transitions. [2021-12-28 05:17:50,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-28 05:17:50,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:50,943 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:50,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 05:17:50,944 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:17:50,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2001085271, now seen corresponding path program 1 times [2021-12-28 05:17:50,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:50,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684832229] [2021-12-28 05:17:50,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:50,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:17:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 05:17:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:17:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:17:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:17:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:17:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:17:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 05:17:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:17:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:17:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:17:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-28 05:17:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-28 05:17:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 05:17:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 05:17:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-28 05:17:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-28 05:17:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-28 05:17:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-28 05:17:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-28 05:17:51,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684832229] [2021-12-28 05:17:51,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684832229] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 05:17:51,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435482821] [2021-12-28 05:17:51,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:51,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 05:17:51,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:17:51,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 05:17:51,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 05:17:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:52,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-28 05:17:52,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 05:17:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-28 05:17:52,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 05:17:52,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435482821] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:52,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 05:17:52,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 19 [2021-12-28 05:17:52,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410618022] [2021-12-28 05:17:52,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:52,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-28 05:17:52,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:52,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-28 05:17:52,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2021-12-28 05:17:52,691 INFO L87 Difference]: Start difference. First operand 4646 states and 6988 transitions. Second operand has 14 states, 13 states have (on average 8.846153846153847) internal successors, (115), 12 states have internal predecessors, (115), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) [2021-12-28 05:17:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:17:53,507 INFO L93 Difference]: Finished difference Result 9557 states and 14365 transitions. [2021-12-28 05:17:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-28 05:17:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.846153846153847) internal successors, (115), 12 states have internal predecessors, (115), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) Word has length 243 [2021-12-28 05:17:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:17:53,540 INFO L225 Difference]: With dead ends: 9557 [2021-12-28 05:17:53,540 INFO L226 Difference]: Without dead ends: 4930 [2021-12-28 05:17:53,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 311 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2021-12-28 05:17:53,577 INFO L933 BasicCegarLoop]: 2879 mSDtfsCounter, 283 mSDsluCounter, 34061 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 36940 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 05:17:53,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 36940 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 05:17:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4930 states. [2021-12-28 05:17:53,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4930 to 4668. [2021-12-28 05:17:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4668 states, 3061 states have (on average 1.249264946096047) internal successors, (3824), 3195 states have internal predecessors, (3824), 1324 states have call successors, (1324), 215 states have call predecessors, (1324), 280 states have return successors, (1866), 1333 states have call predecessors, (1866), 1321 states have call successors, (1866) [2021-12-28 05:17:53,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4668 states to 4668 states and 7014 transitions. [2021-12-28 05:17:53,927 INFO L78 Accepts]: Start accepts. Automaton has 4668 states and 7014 transitions. Word has length 243 [2021-12-28 05:17:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:17:53,929 INFO L470 AbstractCegarLoop]: Abstraction has 4668 states and 7014 transitions. [2021-12-28 05:17:53,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.846153846153847) internal successors, (115), 12 states have internal predecessors, (115), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) [2021-12-28 05:17:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4668 states and 7014 transitions. [2021-12-28 05:17:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-28 05:17:53,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:17:53,935 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:17:53,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 05:17:54,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-28 05:17:54,150 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)] === [2021-12-28 05:17:54,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:17:54,151 INFO L85 PathProgramCache]: Analyzing trace with hash -98288989, now seen corresponding path program 1 times [2021-12-28 05:17:54,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:17:54,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827874168] [2021-12-28 05:17:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:17:54,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:17:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:17:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:17:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 05:17:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:17:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:17:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:17:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:17:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:17:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 05:17:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 05:17:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 05:17:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:17:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 05:17:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:17:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:17:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-28 05:17:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-28 05:17:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 05:17:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 05:17:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 05:17:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:17:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:17:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 05:17:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-28 05:17:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-28 05:17:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:17:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-28 05:17:54,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:17:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827874168] [2021-12-28 05:17:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827874168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:17:54,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:17:54,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:17:54,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393844425] [2021-12-28 05:17:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:17:54,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:17:54,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:17:54,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:17:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:17:54,492 INFO L87 Difference]: Start difference. First operand 4668 states and 7014 transitions. Second operand has 6 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-28 05:18:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:18:01,650 INFO L93 Difference]: Finished difference Result 11701 states and 18346 transitions. [2021-12-28 05:18:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 05:18:01,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) Word has length 247 [2021-12-28 05:18:01,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:18:01,696 INFO L225 Difference]: With dead ends: 11701 [2021-12-28 05:18:01,696 INFO L226 Difference]: Without dead ends: 7054 [2021-12-28 05:18:01,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:18:01,727 INFO L933 BasicCegarLoop]: 2864 mSDtfsCounter, 2563 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 4571 mSolverCounterSat, 2156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 6727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2156 IncrementalHoareTripleChecker+Valid, 4571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-28 05:18:01,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3077 Valid, 6834 Invalid, 6727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2156 Valid, 4571 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-12-28 05:18:01,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2021-12-28 05:18:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 5435. [2021-12-28 05:18:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 3641 states have (on average 1.2587201318319143) internal successors, (4583), 3791 states have internal predecessors, (4583), 1511 states have call successors, (1511), 215 states have call predecessors, (1511), 280 states have return successors, (2081), 1514 states have call predecessors, (2081), 1508 states have call successors, (2081) [2021-12-28 05:18:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 8175 transitions. [2021-12-28 05:18:02,051 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 8175 transitions. Word has length 247 [2021-12-28 05:18:02,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:18:02,051 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 8175 transitions. [2021-12-28 05:18:02,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-28 05:18:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 8175 transitions. [2021-12-28 05:18:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-28 05:18:02,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:02,057 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:18:02,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 05:18:02,057 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)] === [2021-12-28 05:18:02,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:02,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1789505792, now seen corresponding path program 1 times [2021-12-28 05:18:02,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:02,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6518787] [2021-12-28 05:18:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:02,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:18:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 05:18:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:18:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:18:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:18:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 05:18:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:18:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:18:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:18:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:18:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:18:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:18:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:18:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 05:18:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 05:18:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 05:18:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 05:18:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 05:18:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 05:18:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-28 05:18:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:18:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:18:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:18:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 05:18:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 05:18:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 05:18:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:18:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-28 05:18:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:18:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-28 05:18:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-28 05:18:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 05:18:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-28 05:18:02,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:02,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6518787] [2021-12-28 05:18:02,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6518787] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 05:18:02,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238613714] [2021-12-28 05:18:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:02,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 05:18:02,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:18:02,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 05:18:02,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process