./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa --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 73f101526b33e5f10b251e7a447b1a9d4ad6e1a0a49c040c0e548967272c8fbb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:40:24,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:40:24,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:40:24,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:40:24,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:40:24,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:40:24,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:40:24,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:40:24,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:40:24,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:40:24,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:40:24,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:40:24,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:40:24,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:40:24,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:40:24,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:40:24,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:40:24,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:40:24,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:40:24,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:40:24,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:40:24,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:40:24,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:40:24,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:40:24,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:40:24,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:40:24,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:40:24,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:40:24,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:40:24,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:40:24,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:40:24,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:40:24,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:40:24,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:40:24,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:40:24,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:40:24,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:40:24,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:40:24,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:40:24,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:40:24,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:40:24,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 17:40:24,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:40:24,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:40:24,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:40:24,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:40:24,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:40:24,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:40:24,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:40:24,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:40:24,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:40:24,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:40:24,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:40:24,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:40:24,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:40:24,372 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73f101526b33e5f10b251e7a447b1a9d4ad6e1a0a49c040c0e548967272c8fbb [2021-12-06 17:40:24,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:40:24,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:40:24,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:40:24,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:40:24,597 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:40:24,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-12-06 17:40:24,642 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/data/14cab09ef/e7bad5b3861f4c689fe39dbaa8e6049a/FLAGff4db81c3 [2021-12-06 17:40:25,331 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:40:25,332 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-12-06 17:40:25,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/data/14cab09ef/e7bad5b3861f4c689fe39dbaa8e6049a/FLAGff4db81c3 [2021-12-06 17:40:25,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/data/14cab09ef/e7bad5b3861f4c689fe39dbaa8e6049a [2021-12-06 17:40:25,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:40:25,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:40:25,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:40:25,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:40:25,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:40:25,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:40:25" (1/1) ... [2021-12-06 17:40:25,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a56cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:25, skipping insertion in model container [2021-12-06 17:40:25,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:40:25" (1/1) ... [2021-12-06 17:40:25,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:40:25,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:40:30,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564438,564451] [2021-12-06 17:40:30,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564607,564620] [2021-12-06 17:40:30,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564774,564787] [2021-12-06 17:40:30,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564942,564955] [2021-12-06 17:40:30,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:40:30,720 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:40:31,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564438,564451] [2021-12-06 17:40:31,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564607,564620] [2021-12-06 17:40:31,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564774,564787] [2021-12-06 17:40:31,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564942,564955] [2021-12-06 17:40:31,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:40:31,540 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:40:31,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31 WrapperNode [2021-12-06 17:40:31,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:40:31,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:40:31,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:40:31,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:40:31,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:31,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:31,901 INFO L137 Inliner]: procedures = 782, calls = 5181, calls flagged for inlining = 355, calls inlined = 337, statements flattened = 12880 [2021-12-06 17:40:31,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:40:31,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:40:31,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:40:31,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:40:31,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:31,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:31,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:31,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:32,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:32,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:32,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:32,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:40:32,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:40:32,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:40:32,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:40:32,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (1/1) ... [2021-12-06 17:40:32,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:40:32,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:40:32,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:40:32,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9db35b-3570-427c-b7ad-020d59a21f51/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:40:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure enic_set_rx_mode [2021-12-06 17:40:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_set_rx_mode [2021-12-06 17:40:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-12-06 17:40:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-12-06 17:40:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure enic_queue_wq_skb_cont [2021-12-06 17:40:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_queue_wq_skb_cont [2021-12-06 17:40:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure enic_free_intr [2021-12-06 17:40:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_free_intr [2021-12-06 17:40:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_get_res [2021-12-06 17:40:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_get_res [2021-12-06 17:40:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure enic_notify_timer [2021-12-06 17:40:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_notify_timer [2021-12-06 17:40:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_free_desc_ring [2021-12-06 17:40:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_free_desc_ring [2021-12-06 17:40:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-12-06 17:40:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-12-06 17:40:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure enic_reset_addr_lists [2021-12-06 17:40:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_reset_addr_lists [2021-12-06 17:40:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 17:40:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-06 17:40:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure enic_log_q_error [2021-12-06 17:40:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_log_q_error [2021-12-06 17:40:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_wq_disable [2021-12-06 17:40:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_wq_disable [2021-12-06 17:40:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_cq_service [2021-12-06 17:40:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_cq_service [2021-12-06 17:40:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure enic_synchronize_irqs [2021-12-06 17:40:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_synchronize_irqs [2021-12-06 17:40:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 17:40:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 17:40:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 17:40:32,444 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 17:40:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-06 17:40:32,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-06 17:40:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_intr_unmask [2021-12-06 17:40:32,444 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_intr_unmask [2021-12-06 17:40:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 17:40:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_disable [2021-12-06 17:40:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_disable [2021-12-06 17:40:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 17:40:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 17:40:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_set_ig_vlan_rewrite_mode [2021-12-06 17:40:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_set_ig_vlan_rewrite_mode [2021-12-06 17:40:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-12-06 17:40:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-12-06 17:40:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-06 17:40:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-06 17:40:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-12-06 17:40:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-12-06 17:40:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_105 [2021-12-06 17:40:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_105 [2021-12-06 17:40:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_cq_clean [2021-12-06 17:40:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_cq_clean [2021-12-06 17:40:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_enable2_done [2021-12-06 17:40:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_enable2_done [2021-12-06 17:40:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u16 [2021-12-06 17:40:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u16 [2021-12-06 17:40:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 17:40:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 17:40:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure cq_desc_dec [2021-12-06 17:40:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cq_desc_dec [2021-12-06 17:40:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_add [2021-12-06 17:40:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_add [2021-12-06 17:40:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_desc_used [2021-12-06 17:40:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_desc_used [2021-12-06 17:40:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-12-06 17:40:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-12-06 17:40:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure enic_iounmap [2021-12-06 17:40:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_iounmap [2021-12-06 17:40:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 17:40:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 17:40:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 17:40:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 17:40:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:40:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_init [2021-12-06 17:40:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_init [2021-12-06 17:40:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-06 17:40:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-06 17:40:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_cmd_proxy [2021-12-06 17:40:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_cmd_proxy [2021-12-06 17:40:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-06 17:40:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-06 17:40:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-06 17:40:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-06 17:40:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-06 17:40:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 17:40:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure enic_set_rss_nic_cfg [2021-12-06 17:40:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_set_rss_nic_cfg [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-06 17:40:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 17:40:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_wq_desc_avail [2021-12-06 17:40:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_wq_desc_avail [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 17:40:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 17:40:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_4_2 [2021-12-06 17:40:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_4_2 [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure enic_set_coalesce [2021-12-06 17:40:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_set_coalesce [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-06 17:40:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure enic_cq_rq [2021-12-06 17:40:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_cq_rq [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 17:40:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 17:40:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 17:40:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_add_addr [2021-12-06 17:40:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_add_addr [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-06 17:40:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_enable [2021-12-06 17:40:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_enable [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-06 17:40:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-06 17:40:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure enic_msix_notify_intr [2021-12-06 17:40:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_msix_notify_intr [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-06 17:40:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 17:40:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-06 17:40:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure enic_is_sriov_vf [2021-12-06 17:40:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_is_sriov_vf [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-06 17:40:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_sriov [2021-12-06 17:40:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_sriov [2021-12-06 17:40:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 17:40:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure enic_legacy_notify_intr [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_legacy_notify_intr [2021-12-06 17:40:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-12-06 17:40:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:40:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-12-06 17:40:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_intr_coal_timer_info_default [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_intr_coal_timer_info_default [2021-12-06 17:40:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure enic_set_mac_address_dynamic [2021-12-06 17:40:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_set_mac_address_dynamic [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 17:40:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-06 17:40:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 17:40:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-06 17:40:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-06 17:40:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-06 17:40:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-06 17:40:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-06 17:40:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 17:40:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_cmd_proxy_by_index_start [2021-12-06 17:40:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_cmd_proxy_by_index_start [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-06 17:40:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-06 17:40:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_notify_set [2021-12-06 17:40:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_notify_set [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:40:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 17:40:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_get_intr_mode [2021-12-06 17:40:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_get_intr_mode [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-12-06 17:40:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_del_addr [2021-12-06 17:40:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_del_addr [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure enic_get_settings [2021-12-06 17:40:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_get_settings [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2021-12-06 17:40:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2021-12-06 17:40:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 17:40:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure enic_free_vnic_resources [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_free_vnic_resources [2021-12-06 17:40:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 17:40:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 17:40:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure enic_init_vnic_resources [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_init_vnic_resources [2021-12-06 17:40:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_free [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_free [2021-12-06 17:40:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 17:40:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure enic_get_dev [2021-12-06 17:40:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_get_dev [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_get_intr_coal_timer_max [2021-12-06 17:40:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_get_intr_coal_timer_max [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_init_prov2 [2021-12-06 17:40:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_init_prov2 [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 17:40:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-12-06 17:40:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 17:40:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 17:40:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_mtu [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_mtu [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure enic_is_dynamic [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_is_dynamic [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_del_station_addr [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_del_station_addr [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_83 [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_83 [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure enic_set_mac_addr [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_set_mac_addr [2021-12-06 17:40:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure enic_remove [2021-12-06 17:40:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_remove [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_capable [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_capable [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_104 [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_104 [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_priv [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_priv [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure enic_poll_controller [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_poll_controller [2021-12-06 17:40:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-06 17:40:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_add_addr [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_add_addr [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_wq_free [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_wq_free [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure enic_msix_err_intr [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_msix_err_intr [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_get_mac_addr [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_get_mac_addr [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_clear_desc_ring [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_clear_desc_ring [2021-12-06 17:40:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 17:40:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_add_station_addr [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_add_station_addr [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_4 [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_4 [2021-12-06 17:40:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure enic_msix_rq_intr [2021-12-06 17:40:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_msix_rq_intr [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure enic_isr_legacy [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_isr_legacy [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_cq_alloc [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_cq_alloc [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_notify_ready [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_notify_ready [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure _vnic_dev_cmd [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure _vnic_dev_cmd [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 17:40:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_cmd_status [2021-12-06 17:40:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_cmd_status [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_status_to_errno [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_status_to_errno [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure vic_provinfo_size [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure vic_provinfo_size [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 17:40:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 17:40:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure enic_change_mtu [2021-12-06 17:40:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_change_mtu [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_deinit [2021-12-06 17:40:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_deinit [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-06 17:40:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-06 17:40:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_cmd [2021-12-06 17:40:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_cmd [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 17:40:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 17:40:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_intr_return_all_credits [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_intr_return_all_credits [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure enic_notify_timer_start [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_notify_timer_start [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 17:40:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-06 17:40:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_86 [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_86 [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_del_addr [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_del_addr [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_9_2 [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_9_2 [2021-12-06 17:40:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-12-06 17:40:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure enic_msix_wq_intr [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_msix_wq_intr [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure enic_get_drvinfo [2021-12-06 17:40:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_get_drvinfo [2021-12-06 17:40:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure enic_stop [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_stop [2021-12-06 17:40:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-06 17:40:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 17:40:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-06 17:40:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_alloc_desc_ring [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_alloc_desc_ring [2021-12-06 17:40:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-06 17:40:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_clean [2021-12-06 17:40:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_clean [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure enic_free_wq_buf [2021-12-06 17:40:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_free_wq_buf [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-12-06 17:40:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-06 17:40:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-06 17:40:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure enic_cq_wq [2021-12-06 17:40:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_cq_wq [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 17:40:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 17:40:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_notify_unset [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_notify_unset [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure enic_tx_timeout [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_tx_timeout [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_intr_mask [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_intr_mask [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 17:40:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 17:40:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_cmd_proxy_end [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_cmd_proxy_end [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_enable2 [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_enable2 [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_get_res_count [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_get_res_count [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_spec [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_spec [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 17:40:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure enic_get_coalesce [2021-12-06 17:40:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_get_coalesce [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_deinit_done [2021-12-06 17:40:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_deinit_done [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-06 17:40:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure enic_legacy_io_intr [2021-12-06 17:40:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_legacy_io_intr [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-06 17:40:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 17:40:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 17:40:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure enic_sriov_enabled [2021-12-06 17:40:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_sriov_enabled [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure enic_notify_check [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_notify_check [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_intr_coalescing_timer_set [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_intr_coalescing_timer_set [2021-12-06 17:40:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_deinit [2021-12-06 17:40:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_deinit [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure enic_queue_wq_desc_ex [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_queue_wq_desc_ex [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_82 [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_82 [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure enic_queue_wq_desc_cont [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_queue_wq_desc_cont [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure enic_isr_msi [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_isr_msi [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_unregister [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_unregister [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 17:40:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 17:40:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_set_mac_addr [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_set_mac_addr [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure vic_provinfo_add_tlv [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vic_provinfo_add_tlv [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure enic_is_valid_vf [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_is_valid_vf [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure napi_complete [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_complete [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-06 17:40:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_intr_clean [2021-12-06 17:40:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_intr_clean [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_set_intr_mode [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_set_intr_mode [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure enic_clear_intr_mode [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_clear_intr_mode [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_intr_return_credits [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_intr_return_credits [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-06 17:40:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-06 17:40:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_dev_close [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_dev_close [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure readq [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure readq [2021-12-06 17:40:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_stats_dump [2021-12-06 17:40:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_stats_dump [2021-12-06 17:40:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 17:40:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 17:40:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-12-06 17:40:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-12-06 17:40:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure enic_is_valid_pp_vf [2021-12-06 17:40:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_is_valid_pp_vf [2021-12-06 17:40:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure enic_get_sset_count [2021-12-06 17:40:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_get_sset_count [2021-12-06 17:40:33,300 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:40:33,303 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:40:33,608 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 17:51:37,687 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:51:37,714 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:51:37,714 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 17:51:37,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:51:37 BoogieIcfgContainer [2021-12-06 17:51:37,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:51:37,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:51:37,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:51:37,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:51:37,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:40:25" (1/3) ... [2021-12-06 17:51:37,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5a0d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:51:37, skipping insertion in model container [2021-12-06 17:51:37,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:40:31" (2/3) ... [2021-12-06 17:51:37,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5a0d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:51:37, skipping insertion in model container [2021-12-06 17:51:37,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:51:37" (3/3) ... [2021-12-06 17:51:37,725 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-12-06 17:51:37,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:51:37,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-06 17:51:37,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:51:37,783 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 [2021-12-06 17:51:37,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-06 17:51:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 4233 states, 2926 states have (on average 1.278879015721121) internal successors, (3742), 2986 states have internal predecessors, (3742), 1058 states have call successors, (1058), 246 states have call predecessors, (1058), 245 states have return successors, (1054), 1039 states have call predecessors, (1054), 1054 states have call successors, (1054) [2021-12-06 17:51:37,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 17:51:37,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:37,858 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:37,859 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)] === [2021-12-06 17:51:37,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:37,862 INFO L85 PathProgramCache]: Analyzing trace with hash -196723498, now seen corresponding path program 1 times [2021-12-06 17:51:37,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:37,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537933714] [2021-12-06 17:51:37,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:37,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:51:39,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:39,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537933714] [2021-12-06 17:51:39,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537933714] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:39,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:39,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:39,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053709732] [2021-12-06 17:51:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:39,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:39,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:39,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:39,199 INFO L87 Difference]: Start difference. First operand has 4233 states, 2926 states have (on average 1.278879015721121) internal successors, (3742), 2986 states have internal predecessors, (3742), 1058 states have call successors, (1058), 246 states have call predecessors, (1058), 245 states have return successors, (1054), 1039 states have call predecessors, (1054), 1054 states have call successors, (1054) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 17:51:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:39,755 INFO L93 Difference]: Finished difference Result 8576 states and 12026 transitions. [2021-12-06 17:51:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2021-12-06 17:51:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:39,795 INFO L225 Difference]: With dead ends: 8576 [2021-12-06 17:51:39,795 INFO L226 Difference]: Without dead ends: 4357 [2021-12-06 17:51:39,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:39,825 INFO L933 BasicCegarLoop]: 5853 mSDtfsCounter, 5468 mSDsluCounter, 12149 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5485 SdHoareTripleChecker+Valid, 18002 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:39,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5485 Valid, 18002 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2021-12-06 17:51:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4355. [2021-12-06 17:51:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 3000 states have (on average 1.263) internal successors, (3789), 3061 states have internal predecessors, (3789), 1080 states have call successors, (1080), 273 states have call predecessors, (1080), 272 states have return successors, (1077), 1062 states have call predecessors, (1077), 1077 states have call successors, (1077) [2021-12-06 17:51:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 5946 transitions. [2021-12-06 17:51:40,053 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 5946 transitions. Word has length 48 [2021-12-06 17:51:40,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:40,053 INFO L470 AbstractCegarLoop]: Abstraction has 4355 states and 5946 transitions. [2021-12-06 17:51:40,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 17:51:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 5946 transitions. [2021-12-06 17:51:40,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 17:51:40,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:40,056 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:40,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:51:40,057 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)] === [2021-12-06 17:51:40,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1184854017, now seen corresponding path program 1 times [2021-12-06 17:51:40,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:40,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550012827] [2021-12-06 17:51:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:40,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:51:40,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:40,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550012827] [2021-12-06 17:51:40,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550012827] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:40,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:40,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:40,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623239502] [2021-12-06 17:51:40,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:40,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:40,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:40,962 INFO L87 Difference]: Start difference. First operand 4355 states and 5946 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:51:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:41,371 INFO L93 Difference]: Finished difference Result 4384 states and 5968 transitions. [2021-12-06 17:51:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-12-06 17:51:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:41,397 INFO L225 Difference]: With dead ends: 4384 [2021-12-06 17:51:41,397 INFO L226 Difference]: Without dead ends: 4382 [2021-12-06 17:51:41,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:41,401 INFO L933 BasicCegarLoop]: 5792 mSDtfsCounter, 5729 mSDsluCounter, 11605 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 17397 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:41,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 17397 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2021-12-06 17:51:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4380. [2021-12-06 17:51:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 3018 states have (on average 1.2617627567925778) internal successors, (3808), 3079 states have internal predecessors, (3808), 1080 states have call successors, (1080), 280 states have call predecessors, (1080), 279 states have return successors, (1077), 1062 states have call predecessors, (1077), 1077 states have call successors, (1077) [2021-12-06 17:51:41,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 5965 transitions. [2021-12-06 17:51:41,575 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 5965 transitions. Word has length 53 [2021-12-06 17:51:41,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:41,575 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 5965 transitions. [2021-12-06 17:51:41,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:51:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 5965 transitions. [2021-12-06 17:51:41,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 17:51:41,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:41,578 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:41,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:51:41,579 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)] === [2021-12-06 17:51:41,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:41,579 INFO L85 PathProgramCache]: Analyzing trace with hash -53090762, now seen corresponding path program 1 times [2021-12-06 17:51:41,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:41,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280229344] [2021-12-06 17:51:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:41,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:51:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:51:42,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:42,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280229344] [2021-12-06 17:51:42,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280229344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:42,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:42,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:42,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625779865] [2021-12-06 17:51:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:42,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:42,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:42,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:42,373 INFO L87 Difference]: Start difference. First operand 4380 states and 5965 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:51:42,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:42,745 INFO L93 Difference]: Finished difference Result 4386 states and 5970 transitions. [2021-12-06 17:51:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:42,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-12-06 17:51:42,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:42,769 INFO L225 Difference]: With dead ends: 4386 [2021-12-06 17:51:42,769 INFO L226 Difference]: Without dead ends: 4384 [2021-12-06 17:51:42,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:42,773 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5757 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:42,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5757 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4384 states. [2021-12-06 17:51:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4384 to 4384. [2021-12-06 17:51:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 3021 states have (on average 1.2615028136378683) internal successors, (3811), 3082 states have internal predecessors, (3811), 1080 states have call successors, (1080), 281 states have call predecessors, (1080), 280 states have return successors, (1077), 1062 states have call predecessors, (1077), 1077 states have call successors, (1077) [2021-12-06 17:51:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 5968 transitions. [2021-12-06 17:51:43,021 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 5968 transitions. Word has length 58 [2021-12-06 17:51:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:43,021 INFO L470 AbstractCegarLoop]: Abstraction has 4384 states and 5968 transitions. [2021-12-06 17:51:43,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:51:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 5968 transitions. [2021-12-06 17:51:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 17:51:43,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:43,023 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:43,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:51:43,024 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)] === [2021-12-06 17:51:43,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:43,024 INFO L85 PathProgramCache]: Analyzing trace with hash 861302874, now seen corresponding path program 1 times [2021-12-06 17:51:43,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:43,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551622603] [2021-12-06 17:51:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:43,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 17:51:43,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:43,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551622603] [2021-12-06 17:51:43,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551622603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:43,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:43,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:43,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457475048] [2021-12-06 17:51:43,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:43,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:43,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:43,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:43,778 INFO L87 Difference]: Start difference. First operand 4384 states and 5968 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 17:51:44,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:44,141 INFO L93 Difference]: Finished difference Result 4390 states and 5973 transitions. [2021-12-06 17:51:44,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:44,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2021-12-06 17:51:44,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:44,165 INFO L225 Difference]: With dead ends: 4390 [2021-12-06 17:51:44,165 INFO L226 Difference]: Without dead ends: 4388 [2021-12-06 17:51:44,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:44,169 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5736 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5749 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:44,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5749 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2021-12-06 17:51:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 4388. [2021-12-06 17:51:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 3024 states have (on average 1.2612433862433863) internal successors, (3814), 3085 states have internal predecessors, (3814), 1080 states have call successors, (1080), 282 states have call predecessors, (1080), 281 states have return successors, (1077), 1062 states have call predecessors, (1077), 1077 states have call successors, (1077) [2021-12-06 17:51:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 5971 transitions. [2021-12-06 17:51:44,334 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 5971 transitions. Word has length 70 [2021-12-06 17:51:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:44,334 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 5971 transitions. [2021-12-06 17:51:44,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 17:51:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 5971 transitions. [2021-12-06 17:51:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-06 17:51:44,336 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:44,336 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:44,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:51:44,336 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)] === [2021-12-06 17:51:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1292842555, now seen corresponding path program 1 times [2021-12-06 17:51:44,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:44,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161404570] [2021-12-06 17:51:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:44,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:51:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-06 17:51:45,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:45,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161404570] [2021-12-06 17:51:45,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161404570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:45,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:45,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:45,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761581852] [2021-12-06 17:51:45,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:45,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:45,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:45,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:45,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:45,143 INFO L87 Difference]: Start difference. First operand 4388 states and 5971 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:51:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:45,493 INFO L93 Difference]: Finished difference Result 4588 states and 6206 transitions. [2021-12-06 17:51:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2021-12-06 17:51:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:45,519 INFO L225 Difference]: With dead ends: 4588 [2021-12-06 17:51:45,519 INFO L226 Difference]: Without dead ends: 4586 [2021-12-06 17:51:45,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:45,523 INFO L933 BasicCegarLoop]: 5840 mSDtfsCounter, 5131 mSDsluCounter, 12489 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5143 SdHoareTripleChecker+Valid, 18329 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:45,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5143 Valid, 18329 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-12-06 17:51:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 4584. [2021-12-06 17:51:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 3171 states have (on average 1.262062440870388) internal successors, (4002), 3233 states have internal predecessors, (4002), 1102 states have call successors, (1102), 309 states have call predecessors, (1102), 308 states have return successors, (1099), 1084 states have call predecessors, (1099), 1099 states have call successors, (1099) [2021-12-06 17:51:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6203 transitions. [2021-12-06 17:51:45,743 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6203 transitions. Word has length 75 [2021-12-06 17:51:45,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:45,744 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 6203 transitions. [2021-12-06 17:51:45,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:51:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6203 transitions. [2021-12-06 17:51:45,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-06 17:51:45,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:45,745 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:45,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:51:45,745 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)] === [2021-12-06 17:51:45,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:45,746 INFO L85 PathProgramCache]: Analyzing trace with hash 823725242, now seen corresponding path program 1 times [2021-12-06 17:51:45,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:45,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654498671] [2021-12-06 17:51:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:45,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:51:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:51:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 17:51:46,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:46,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654498671] [2021-12-06 17:51:46,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654498671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:46,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:46,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:46,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436635133] [2021-12-06 17:51:46,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:46,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:46,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:46,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:46,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:46,496 INFO L87 Difference]: Start difference. First operand 4584 states and 6203 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:51:46,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:46,969 INFO L93 Difference]: Finished difference Result 8859 states and 11976 transitions. [2021-12-06 17:51:46,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:46,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2021-12-06 17:51:46,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:47,018 INFO L225 Difference]: With dead ends: 8859 [2021-12-06 17:51:47,019 INFO L226 Difference]: Without dead ends: 8857 [2021-12-06 17:51:47,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:47,025 INFO L933 BasicCegarLoop]: 7128 mSDtfsCounter, 5688 mSDsluCounter, 19641 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5699 SdHoareTripleChecker+Valid, 26769 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:47,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5699 Valid, 26769 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8857 states. [2021-12-06 17:51:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8857 to 8853. [2021-12-06 17:51:47,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 6157 states have (on average 1.2647393210979374) internal successors, (7787), 6268 states have internal predecessors, (7787), 2094 states have call successors, (2094), 600 states have call predecessors, (2094), 599 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:47,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 11972 transitions. [2021-12-06 17:51:47,336 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 11972 transitions. Word has length 80 [2021-12-06 17:51:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:47,336 INFO L470 AbstractCegarLoop]: Abstraction has 8853 states and 11972 transitions. [2021-12-06 17:51:47,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 17:51:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 11972 transitions. [2021-12-06 17:51:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-06 17:51:47,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:47,338 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:47,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:51:47,338 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)] === [2021-12-06 17:51:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1889109339, now seen corresponding path program 1 times [2021-12-06 17:51:47,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:47,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834258857] [2021-12-06 17:51:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:47,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:51:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:51:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:51:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-06 17:51:48,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:48,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834258857] [2021-12-06 17:51:48,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834258857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:48,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:48,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:48,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549569229] [2021-12-06 17:51:48,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:48,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:48,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:48,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:48,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:48,132 INFO L87 Difference]: Start difference. First operand 8853 states and 11972 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:51:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:48,550 INFO L93 Difference]: Finished difference Result 8859 states and 11977 transitions. [2021-12-06 17:51:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:48,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 85 [2021-12-06 17:51:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:48,581 INFO L225 Difference]: With dead ends: 8859 [2021-12-06 17:51:48,581 INFO L226 Difference]: Without dead ends: 8857 [2021-12-06 17:51:48,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:48,586 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5736 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5746 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:48,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5746 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:48,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8857 states. [2021-12-06 17:51:48,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8857 to 8857. [2021-12-06 17:51:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 6160 states have (on average 1.2646103896103895) internal successors, (7790), 6271 states have internal predecessors, (7790), 2094 states have call successors, (2094), 601 states have call predecessors, (2094), 600 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 11975 transitions. [2021-12-06 17:51:48,897 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 11975 transitions. Word has length 85 [2021-12-06 17:51:48,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:48,898 INFO L470 AbstractCegarLoop]: Abstraction has 8857 states and 11975 transitions. [2021-12-06 17:51:48,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 17:51:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 11975 transitions. [2021-12-06 17:51:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-06 17:51:48,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:48,899 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:48,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:51:48,899 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)] === [2021-12-06 17:51:48,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:48,899 INFO L85 PathProgramCache]: Analyzing trace with hash 189746783, now seen corresponding path program 1 times [2021-12-06 17:51:48,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:48,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133153556] [2021-12-06 17:51:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:48,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:51:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:51:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:51:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:51:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:51:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:51:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 17:51:49,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:49,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133153556] [2021-12-06 17:51:49,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133153556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:49,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:49,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:49,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204403724] [2021-12-06 17:51:49,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:49,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:49,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:49,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:49,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:49,551 INFO L87 Difference]: Start difference. First operand 8857 states and 11975 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 17:51:49,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:49,916 INFO L93 Difference]: Finished difference Result 8863 states and 11980 transitions. [2021-12-06 17:51:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:49,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2021-12-06 17:51:49,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:49,987 INFO L225 Difference]: With dead ends: 8863 [2021-12-06 17:51:49,987 INFO L226 Difference]: Without dead ends: 8861 [2021-12-06 17:51:49,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:49,991 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:49,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8861 states. [2021-12-06 17:51:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8861 to 8861. [2021-12-06 17:51:50,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 6163 states have (on average 1.264481583644329) internal successors, (7793), 6274 states have internal predecessors, (7793), 2094 states have call successors, (2094), 602 states have call predecessors, (2094), 601 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 11978 transitions. [2021-12-06 17:51:50,295 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 11978 transitions. Word has length 83 [2021-12-06 17:51:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:50,295 INFO L470 AbstractCegarLoop]: Abstraction has 8861 states and 11978 transitions. [2021-12-06 17:51:50,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 17:51:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 11978 transitions. [2021-12-06 17:51:50,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 17:51:50,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:50,297 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:50,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:51:50,297 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)] === [2021-12-06 17:51:50,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2116739973, now seen corresponding path program 1 times [2021-12-06 17:51:50,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:50,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862422740] [2021-12-06 17:51:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:50,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:51:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:51,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:51:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:51:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:51:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:51:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-06 17:51:51,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:51,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862422740] [2021-12-06 17:51:51,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862422740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:51,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:51,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:51,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343026488] [2021-12-06 17:51:51,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:51,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:51,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:51,030 INFO L87 Difference]: Start difference. First operand 8861 states and 11978 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 17:51:51,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:51,410 INFO L93 Difference]: Finished difference Result 8867 states and 11983 transitions. [2021-12-06 17:51:51,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:51,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-12-06 17:51:51,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:51,437 INFO L225 Difference]: With dead ends: 8867 [2021-12-06 17:51:51,437 INFO L226 Difference]: Without dead ends: 8865 [2021-12-06 17:51:51,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:51,442 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5736 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:51,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:51,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8865 states. [2021-12-06 17:51:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8865 to 8865. [2021-12-06 17:51:51,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8865 states, 6166 states have (on average 1.2643529030165424) internal successors, (7796), 6277 states have internal predecessors, (7796), 2094 states have call successors, (2094), 603 states have call predecessors, (2094), 602 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8865 states to 8865 states and 11981 transitions. [2021-12-06 17:51:51,744 INFO L78 Accepts]: Start accepts. Automaton has 8865 states and 11981 transitions. Word has length 95 [2021-12-06 17:51:51,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:51,745 INFO L470 AbstractCegarLoop]: Abstraction has 8865 states and 11981 transitions. [2021-12-06 17:51:51,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 17:51:51,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8865 states and 11981 transitions. [2021-12-06 17:51:51,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 17:51:51,746 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:51,746 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] [2021-12-06 17:51:51,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 17:51:51,746 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)] === [2021-12-06 17:51:51,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash 398290298, now seen corresponding path program 1 times [2021-12-06 17:51:51,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:51,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997971881] [2021-12-06 17:51:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:51,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:51:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:51:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:51:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:51:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:51:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:51:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-06 17:51:52,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:52,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997971881] [2021-12-06 17:51:52,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997971881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:52,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:52,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:52,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913745018] [2021-12-06 17:51:52,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:52,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:52,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:52,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:52,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:52,445 INFO L87 Difference]: Start difference. First operand 8865 states and 11981 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2021-12-06 17:51:52,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:52,809 INFO L93 Difference]: Finished difference Result 8871 states and 11986 transitions. [2021-12-06 17:51:52,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:52,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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 100 [2021-12-06 17:51:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:52,831 INFO L225 Difference]: With dead ends: 8871 [2021-12-06 17:51:52,831 INFO L226 Difference]: Without dead ends: 8869 [2021-12-06 17:51:52,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:52,836 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5736 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5743 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:52,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5743 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:52,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8869 states. [2021-12-06 17:51:53,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8869 to 8869. [2021-12-06 17:51:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 6169 states have (on average 1.2642243475441726) internal successors, (7799), 6280 states have internal predecessors, (7799), 2094 states have call successors, (2094), 604 states have call predecessors, (2094), 603 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 11984 transitions. [2021-12-06 17:51:53,135 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 11984 transitions. Word has length 100 [2021-12-06 17:51:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:53,135 INFO L470 AbstractCegarLoop]: Abstraction has 8869 states and 11984 transitions. [2021-12-06 17:51:53,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2021-12-06 17:51:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 11984 transitions. [2021-12-06 17:51:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 17:51:53,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:53,137 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:53,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 17:51:53,137 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)] === [2021-12-06 17:51:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1299235914, now seen corresponding path program 1 times [2021-12-06 17:51:53,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:53,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506667766] [2021-12-06 17:51:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:53,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:51:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:51:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:51:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:51:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:51:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:51:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:51:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:51:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:51:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-06 17:51:53,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:53,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506667766] [2021-12-06 17:51:53,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506667766] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:53,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:53,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:53,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520920645] [2021-12-06 17:51:53,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:53,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:53,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:53,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:53,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:53,800 INFO L87 Difference]: Start difference. First operand 8869 states and 11984 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 17:51:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:54,201 INFO L93 Difference]: Finished difference Result 8875 states and 11989 transitions. [2021-12-06 17:51:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:54,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2021-12-06 17:51:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:54,222 INFO L225 Difference]: With dead ends: 8875 [2021-12-06 17:51:54,222 INFO L226 Difference]: Without dead ends: 8873 [2021-12-06 17:51:54,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:54,226 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5749 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:54,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5749 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:54,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8873 states. [2021-12-06 17:51:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8873 to 8873. [2021-12-06 17:51:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 6172 states have (on average 1.2640959170447181) internal successors, (7802), 6283 states have internal predecessors, (7802), 2094 states have call successors, (2094), 605 states have call predecessors, (2094), 604 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 11987 transitions. [2021-12-06 17:51:54,528 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 11987 transitions. Word has length 98 [2021-12-06 17:51:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:54,528 INFO L470 AbstractCegarLoop]: Abstraction has 8873 states and 11987 transitions. [2021-12-06 17:51:54,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 17:51:54,529 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 11987 transitions. [2021-12-06 17:51:54,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 17:51:54,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:54,530 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, 1, 1, 1] [2021-12-06 17:51:54,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 17:51:54,531 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)] === [2021-12-06 17:51:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1452487130, now seen corresponding path program 1 times [2021-12-06 17:51:54,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:54,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973566893] [2021-12-06 17:51:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:54,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:51:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:51:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:51:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:51:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:51:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:51:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:51:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:51:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:51:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:51:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:51:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 17:51:55,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:55,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973566893] [2021-12-06 17:51:55,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973566893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:55,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:55,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:55,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754947168] [2021-12-06 17:51:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:55,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:55,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:55,213 INFO L87 Difference]: Start difference. First operand 8873 states and 11987 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2021-12-06 17:51:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:55,621 INFO L93 Difference]: Finished difference Result 8879 states and 11992 transitions. [2021-12-06 17:51:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:55,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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 110 [2021-12-06 17:51:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:55,637 INFO L225 Difference]: With dead ends: 8879 [2021-12-06 17:51:55,638 INFO L226 Difference]: Without dead ends: 8877 [2021-12-06 17:51:55,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:55,640 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5736 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5741 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:55,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5741 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2021-12-06 17:51:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 8877. [2021-12-06 17:51:55,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 6175 states have (on average 1.2639676113360323) internal successors, (7805), 6286 states have internal predecessors, (7805), 2094 states have call successors, (2094), 606 states have call predecessors, (2094), 605 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 11990 transitions. [2021-12-06 17:51:55,930 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 11990 transitions. Word has length 110 [2021-12-06 17:51:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:55,931 INFO L470 AbstractCegarLoop]: Abstraction has 8877 states and 11990 transitions. [2021-12-06 17:51:55,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2021-12-06 17:51:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 11990 transitions. [2021-12-06 17:51:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 17:51:55,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:55,932 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:55,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 17:51:55,933 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 17:51:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:55,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1590574358, now seen corresponding path program 1 times [2021-12-06 17:51:55,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:55,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689701902] [2021-12-06 17:51:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:55,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:51:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:51:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:51:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:51:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:51:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:51:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:51:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:51:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:51:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 17:51:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:51:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-06 17:51:56,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:56,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689701902] [2021-12-06 17:51:56,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689701902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:56,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:56,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:56,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376916246] [2021-12-06 17:51:56,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:56,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:56,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:56,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:56,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:56,599 INFO L87 Difference]: Start difference. First operand 8877 states and 11990 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 17:51:56,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:56,988 INFO L93 Difference]: Finished difference Result 8883 states and 11995 transitions. [2021-12-06 17:51:56,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:56,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2021-12-06 17:51:56,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:57,008 INFO L225 Difference]: With dead ends: 8883 [2021-12-06 17:51:57,008 INFO L226 Difference]: Without dead ends: 8881 [2021-12-06 17:51:57,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:57,012 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5747 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:57,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5747 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8881 states. [2021-12-06 17:51:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8881 to 8881. [2021-12-06 17:51:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8881 states, 6178 states have (on average 1.2638394302363225) internal successors, (7808), 6289 states have internal predecessors, (7808), 2094 states have call successors, (2094), 607 states have call predecessors, (2094), 606 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 11993 transitions. [2021-12-06 17:51:57,342 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 11993 transitions. Word has length 108 [2021-12-06 17:51:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:57,343 INFO L470 AbstractCegarLoop]: Abstraction has 8881 states and 11993 transitions. [2021-12-06 17:51:57,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 17:51:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 11993 transitions. [2021-12-06 17:51:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 17:51:57,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:57,344 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:51:57,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 17:51:57,344 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 17:51:57,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash 309056703, now seen corresponding path program 1 times [2021-12-06 17:51:57,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:57,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635386590] [2021-12-06 17:51:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:57,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:51:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:51:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:51:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:51:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:51:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:51:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:51:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:51:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:51:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 17:51:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:51:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:58,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 17:51:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-06 17:51:58,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:58,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635386590] [2021-12-06 17:51:58,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635386590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:58,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:58,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:58,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524955796] [2021-12-06 17:51:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:58,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:58,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:58,019 INFO L87 Difference]: Start difference. First operand 8881 states and 11993 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 17:51:58,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:58,429 INFO L93 Difference]: Finished difference Result 8887 states and 11998 transitions. [2021-12-06 17:51:58,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:58,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2021-12-06 17:51:58,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:58,448 INFO L225 Difference]: With dead ends: 8887 [2021-12-06 17:51:58,448 INFO L226 Difference]: Without dead ends: 8885 [2021-12-06 17:51:58,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:58,452 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5746 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:58,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5746 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:58,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8885 states. [2021-12-06 17:51:58,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8885 to 8885. [2021-12-06 17:51:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 6181 states have (on average 1.263711373564148) internal successors, (7811), 6292 states have internal predecessors, (7811), 2094 states have call successors, (2094), 608 states have call predecessors, (2094), 607 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:51:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 11996 transitions. [2021-12-06 17:51:58,801 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 11996 transitions. Word has length 113 [2021-12-06 17:51:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:51:58,801 INFO L470 AbstractCegarLoop]: Abstraction has 8885 states and 11996 transitions. [2021-12-06 17:51:58,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 17:51:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 11996 transitions. [2021-12-06 17:51:58,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 17:51:58,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:51:58,803 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 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] [2021-12-06 17:51:58,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 17:51:58,803 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 17:51:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:51:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash -449530250, now seen corresponding path program 1 times [2021-12-06 17:51:58,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:51:58,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715094508] [2021-12-06 17:51:58,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:51:58,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:51:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:51:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:51:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:51:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:51:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:51:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:51:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:51:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:51:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:51:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:51:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:51:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:51:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:51:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:51:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:51:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:51:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 17:51:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:51:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 17:51:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 17:51:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:51:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-06 17:51:59,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:51:59,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715094508] [2021-12-06 17:51:59,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715094508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:51:59,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:51:59,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:51:59,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819285493] [2021-12-06 17:51:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:51:59,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:51:59,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:51:59,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:51:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:51:59,494 INFO L87 Difference]: Start difference. First operand 8885 states and 11996 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 17:51:59,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:51:59,961 INFO L93 Difference]: Finished difference Result 8891 states and 12001 transitions. [2021-12-06 17:51:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:51:59,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2021-12-06 17:51:59,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:51:59,983 INFO L225 Difference]: With dead ends: 8891 [2021-12-06 17:51:59,983 INFO L226 Difference]: Without dead ends: 8889 [2021-12-06 17:51:59,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:51:59,987 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5745 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:51:59,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5745 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:51:59,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8889 states. [2021-12-06 17:52:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8889 to 8889. [2021-12-06 17:52:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8889 states, 6184 states have (on average 1.2635834411384217) internal successors, (7814), 6295 states have internal predecessors, (7814), 2094 states have call successors, (2094), 609 states have call predecessors, (2094), 608 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:52:00,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8889 states to 8889 states and 11999 transitions. [2021-12-06 17:52:00,361 INFO L78 Accepts]: Start accepts. Automaton has 8889 states and 11999 transitions. Word has length 118 [2021-12-06 17:52:00,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:52:00,361 INFO L470 AbstractCegarLoop]: Abstraction has 8889 states and 11999 transitions. [2021-12-06 17:52:00,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 17:52:00,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8889 states and 11999 transitions. [2021-12-06 17:52:00,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-06 17:52:00,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:52:00,363 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 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] [2021-12-06 17:52:00,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 17:52:00,363 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-06 17:52:00,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:52:00,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1170970913, now seen corresponding path program 1 times [2021-12-06 17:52:00,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:52:00,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152655950] [2021-12-06 17:52:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:52:00,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:52:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:52:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:52:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:52:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:52:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:52:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 17:52:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 17:52:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:52:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:52:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:52:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:52:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 17:52:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 17:52:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:52:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 17:52:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 17:52:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 17:52:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 17:52:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 17:52:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:52:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-06 17:52:01,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:52:01,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152655950] [2021-12-06 17:52:01,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152655950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:52:01,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:52:01,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:52:01,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761020989] [2021-12-06 17:52:01,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:52:01,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:52:01,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:52:01,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:52:01,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:52:01,056 INFO L87 Difference]: Start difference. First operand 8889 states and 11999 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 17:52:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:52:01,506 INFO L93 Difference]: Finished difference Result 8895 states and 12004 transitions. [2021-12-06 17:52:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:52:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 123 [2021-12-06 17:52:01,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:52:01,526 INFO L225 Difference]: With dead ends: 8895 [2021-12-06 17:52:01,526 INFO L226 Difference]: Without dead ends: 8891 [2021-12-06 17:52:01,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:52:01,530 INFO L933 BasicCegarLoop]: 5776 mSDtfsCounter, 5743 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 17304 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:52:01,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 17304 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:52:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8891 states. [2021-12-06 17:52:01,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8891 to 8891. [2021-12-06 17:52:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8891 states, 6186 states have (on average 1.263336566440349) internal successors, (7815), 6296 states have internal predecessors, (7815), 2094 states have call successors, (2094), 610 states have call predecessors, (2094), 608 states have return successors, (2091), 2065 states have call predecessors, (2091), 2091 states have call successors, (2091) [2021-12-06 17:52:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8891 states to 8891 states and 12000 transitions. [2021-12-06 17:52:01,898 INFO L78 Accepts]: Start accepts. Automaton has 8891 states and 12000 transitions. Word has length 123 [2021-12-06 17:52:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:52:01,898 INFO L470 AbstractCegarLoop]: Abstraction has 8891 states and 12000 transitions. [2021-12-06 17:52:01,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 17:52:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 8891 states and 12000 transitions. [2021-12-06 17:52:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-06 17:52:01,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:52:01,900 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 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] [2021-12-06 17:52:01,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 17:52:01,900 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-12-06 17:52:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:52:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1683470085, now seen corresponding path program 1 times [2021-12-06 17:52:01,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:52:01,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340386565] [2021-12-06 17:52:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:52:01,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:52:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:52:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:52:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:52:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 17:52:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:52:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 17:52:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:52:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 17:52:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:52:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:52:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:52:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:52:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:52:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 17:52:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:52:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:52:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 17:52:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 17:52:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 17:52:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-06 17:52:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 17:52:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-12-06 17:52:02,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:52:02,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340386565] [2021-12-06 17:52:02,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340386565] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:52:02,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:52:02,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:52:02,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062262755] [2021-12-06 17:52:02,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:52:02,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:52:02,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:52:02,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:52:02,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:52:02,620 INFO L87 Difference]: Start difference. First operand 8891 states and 12000 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 17:52:03,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:52:03,054 INFO L93 Difference]: Finished difference Result 8891 states and 12000 transitions. [2021-12-06 17:52:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:52:03,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135 [2021-12-06 17:52:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:52:03,073 INFO L225 Difference]: With dead ends: 8891 [2021-12-06 17:52:03,073 INFO L226 Difference]: Without dead ends: 8778 [2021-12-06 17:52:03,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:52:03,077 INFO L933 BasicCegarLoop]: 5774 mSDtfsCounter, 5732 mSDsluCounter, 11527 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5732 SdHoareTripleChecker+Valid, 17301 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:52:03,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5732 Valid, 17301 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:52:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8778 states. [2021-12-06 17:52:03,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8778 to 8778. [2021-12-06 17:52:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8778 states, 6116 states have (on average 1.2658600392413342) internal successors, (7742), 6224 states have internal predecessors, (7742), 2068 states have call successors, (2068), 592 states have call predecessors, (2068), 592 states have return successors, (2068), 2042 states have call predecessors, (2068), 2068 states have call successors, (2068) [2021-12-06 17:52:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8778 states to 8778 states and 11878 transitions. [2021-12-06 17:52:03,475 INFO L78 Accepts]: Start accepts. Automaton has 8778 states and 11878 transitions. Word has length 135 [2021-12-06 17:52:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:52:03,475 INFO L470 AbstractCegarLoop]: Abstraction has 8778 states and 11878 transitions. [2021-12-06 17:52:03,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 17:52:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8778 states and 11878 transitions. [2021-12-06 17:52:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 17:52:03,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:52:03,477 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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] [2021-12-06 17:52:03,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 17:52:03,477 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)] === [2021-12-06 17:52:03,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:52:03,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1647518222, now seen corresponding path program 1 times [2021-12-06 17:52:03,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:52:03,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207863906] [2021-12-06 17:52:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:52:03,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:52:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:52:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:52:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 17:52:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:52:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:52:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:52:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:52:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:52:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:52:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:52:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:52:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:52:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:52:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 17:52:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:52:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 17:52:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 17:52:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 17:52:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 17:52:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:52:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 17:52:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:52:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-06 17:52:04,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:52:04,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207863906] [2021-12-06 17:52:04,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207863906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:52:04,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:52:04,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:52:04,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947561375] [2021-12-06 17:52:04,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:52:04,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:52:04,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:52:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:52:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:52:04,724 INFO L87 Difference]: Start difference. First operand 8778 states and 11878 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 17:52:06,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:52:29,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:53:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:03,589 INFO L93 Difference]: Finished difference Result 10259 states and 14177 transitions. [2021-12-06 17:53:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 17:53:03,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 174 [2021-12-06 17:53:03,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:03,613 INFO L225 Difference]: With dead ends: 10259 [2021-12-06 17:53:03,613 INFO L226 Difference]: Without dead ends: 10257 [2021-12-06 17:53:03,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:53:03,616 INFO L933 BasicCegarLoop]: 6038 mSDtfsCounter, 10513 mSDsluCounter, 15484 mSDsCounter, 0 mSdLazyCounter, 10886 mSolverCounterSat, 6554 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11491 SdHoareTripleChecker+Valid, 21522 SdHoareTripleChecker+Invalid, 17442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6554 IncrementalHoareTripleChecker+Valid, 10886 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:03,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11491 Valid, 21522 Invalid, 17442 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6554 Valid, 10886 Invalid, 2 Unknown, 0 Unchecked, 57.1s Time] [2021-12-06 17:53:03,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10257 states. [2021-12-06 17:53:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10257 to 8974. [2021-12-06 17:53:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8974 states, 6259 states have (on average 1.2658571656814188) internal successors, (7923), 6369 states have internal predecessors, (7923), 2097 states have call successors, (2097), 616 states have call predecessors, (2097), 616 states have return successors, (2097), 2070 states have call predecessors, (2097), 2097 states have call successors, (2097) [2021-12-06 17:53:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8974 states to 8974 states and 12117 transitions. [2021-12-06 17:53:04,102 INFO L78 Accepts]: Start accepts. Automaton has 8974 states and 12117 transitions. Word has length 174 [2021-12-06 17:53:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:04,102 INFO L470 AbstractCegarLoop]: Abstraction has 8974 states and 12117 transitions. [2021-12-06 17:53:04,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 17:53:04,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8974 states and 12117 transitions. [2021-12-06 17:53:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 17:53:04,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:04,104 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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] [2021-12-06 17:53:04,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 17:53:04,104 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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)] === [2021-12-06 17:53:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash 381365497, now seen corresponding path program 1 times [2021-12-06 17:53:04,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:04,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327306822] [2021-12-06 17:53:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:04,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:53:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 17:53:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:53:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:53:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:53:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:53:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:53:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:53:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:53:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:53:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:53:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:53:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 17:53:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:53:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 17:53:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 17:53:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 17:53:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 17:53:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-06 17:53:04,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:04,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327306822] [2021-12-06 17:53:04,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327306822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:04,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:04,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:53:04,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159129218] [2021-12-06 17:53:04,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:04,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:53:04,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:04,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:53:04,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:53:04,976 INFO L87 Difference]: Start difference. First operand 8974 states and 12117 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-06 17:53:07,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:53:27,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:53:42,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:53:45,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:45,191 INFO L93 Difference]: Finished difference Result 19258 states and 26392 transitions. [2021-12-06 17:53:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:53:45,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 176 [2021-12-06 17:53:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:45,229 INFO L225 Difference]: With dead ends: 19258 [2021-12-06 17:53:45,229 INFO L226 Difference]: Without dead ends: 10301 [2021-12-06 17:53:45,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:53:45,266 INFO L933 BasicCegarLoop]: 5135 mSDtfsCounter, 3185 mSDsluCounter, 10070 mSDsCounter, 0 mSdLazyCounter, 6342 mSolverCounterSat, 2803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3597 SdHoareTripleChecker+Valid, 15205 SdHoareTripleChecker+Invalid, 9147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2803 IncrementalHoareTripleChecker+Valid, 6342 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:45,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3597 Valid, 15205 Invalid, 9147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2803 Valid, 6342 Invalid, 2 Unknown, 0 Unchecked, 38.9s Time] [2021-12-06 17:53:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2021-12-06 17:53:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 9020. [2021-12-06 17:53:45,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 6299 states have (on average 1.2667090014287983) internal successors, (7979), 6409 states have internal predecessors, (7979), 2103 states have call successors, (2103), 616 states have call predecessors, (2103), 616 states have return successors, (2103), 2076 states have call predecessors, (2103), 2103 states have call successors, (2103) [2021-12-06 17:53:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 12185 transitions. [2021-12-06 17:53:45,753 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 12185 transitions. Word has length 176 [2021-12-06 17:53:45,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:45,753 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 12185 transitions. [2021-12-06 17:53:45,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-06 17:53:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 12185 transitions. [2021-12-06 17:53:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 17:53:45,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:45,755 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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] [2021-12-06 17:53:45,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 17:53:45,755 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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)] === [2021-12-06 17:53:45,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:45,755 INFO L85 PathProgramCache]: Analyzing trace with hash -298692873, now seen corresponding path program 1 times [2021-12-06 17:53:45,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:45,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080187421] [2021-12-06 17:53:45,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:45,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 17:53:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 17:53:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:53:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:53:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:53:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:53:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:53:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 17:53:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:53:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:53:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 17:53:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:53:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 17:53:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:53:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:53:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 17:53:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 17:53:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 17:53:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 17:53:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-06 17:53:46,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:46,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080187421] [2021-12-06 17:53:46,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080187421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:46,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:46,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:53:46,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113680544] [2021-12-06 17:53:46,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:46,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:53:46,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:46,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:53:46,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:46,833 INFO L87 Difference]: Start difference. First operand 9020 states and 12185 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 17:53:48,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:53:51,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:53:53,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []