./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:58:05,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:58:05,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:58:05,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:58:05,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:58:05,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:58:05,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:58:05,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:58:05,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:58:05,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:58:05,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:58:05,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:58:05,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:58:05,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:58:05,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:58:05,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:58:05,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:58:05,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:58:05,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:58:05,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:58:05,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:58:05,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:58:05,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:58:05,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:58:05,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:58:05,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:58:05,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:58:05,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:58:05,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:58:05,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:58:05,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:58:05,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:58:05,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:58:05,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:58:05,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:58:05,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:58:05,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:58:05,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:58:05,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:58:05,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:58:05,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:58:05,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:58:05,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:58:05,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:58:05,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:58:05,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:58:05,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:58:05,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:58:05,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:58:05,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:58:05,429 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:58:05,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:58:05,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:58:05,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:58:05,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:58:05,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:58:05,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:58:05,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:58:05,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:58:05,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:58:05,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:58:05,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:58:05,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:58:05,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:58:05,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:58:05,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:58:05,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:58:05,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:58:05,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:58:05,433 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:58:05,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:58:05,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:58:05,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:58:05,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a [2021-12-22 15:58:05,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:58:05,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:58:05,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:58:05,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:58:05,682 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:58:05,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-22 15:58:05,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8440b69/43a44849d216471fbda6fbef9ab25d79/FLAG75eba8841 [2021-12-22 15:58:06,418 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:58:06,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-22 15:58:06,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8440b69/43a44849d216471fbda6fbef9ab25d79/FLAG75eba8841 [2021-12-22 15:58:06,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8440b69/43a44849d216471fbda6fbef9ab25d79 [2021-12-22 15:58:06,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:58:06,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:58:06,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:58:06,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:58:06,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:58:06,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:58:06" (1/1) ... [2021-12-22 15:58:06,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1eae3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:06, skipping insertion in model container [2021-12-22 15:58:06,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:58:06" (1/1) ... [2021-12-22 15:58:06,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:58:06,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:58:09,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2021-12-22 15:58:09,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2021-12-22 15:58:09,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2021-12-22 15:58:09,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2021-12-22 15:58:09,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:58:09,719 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:58:10,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2021-12-22 15:58:10,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2021-12-22 15:58:10,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2021-12-22 15:58:10,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2021-12-22 15:58:10,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:58:10,251 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:58:10,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10 WrapperNode [2021-12-22 15:58:10,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:58:10,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:58:10,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:58:10,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:58:10,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,595 INFO L137 Inliner]: procedures = 541, calls = 2827, calls flagged for inlining = 282, calls inlined = 248, statements flattened = 7252 [2021-12-22 15:58:10,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:58:10,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:58:10,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:58:10,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:58:10,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:58:10,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:58:10,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:58:10,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:58:10,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (1/1) ... [2021-12-22 15:58:10,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:58:10,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:58:10,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:58:10,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-22 15:58:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-22 15:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:58:10,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 15:58:10,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 15:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:58:10,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:58:10,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:58:10,982 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:58:10,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:58:10,982 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 15:58:10,983 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 15:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-12-22 15:58:10,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-12-22 15:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-12-22 15:58:10,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-12-22 15:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 15:58:10,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 15:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:58:10,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:58:10,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:58:10,984 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:58:10,985 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:58:10,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:58:10,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-12-22 15:58:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-12-22 15:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:58:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:58:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:58:10,987 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-22 15:58:10,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-22 15:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:58:10,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-12-22 15:58:10,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-12-22 15:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:58:10,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:58:10,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-12-22 15:58:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-12-22 15:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-22 15:58:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-22 15:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:58:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:58:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:58:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:58:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:58:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:58:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:58:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-12-22 15:58:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-12-22 15:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-22 15:58:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-22 15:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-12-22 15:58:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-12-22 15:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:58:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-22 15:58:10,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-22 15:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-12-22 15:58:10,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-12-22 15:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-22 15:58:10,992 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-22 15:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:58:10,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:58:10,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:58:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-12-22 15:58:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-12-22 15:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-12-22 15:58:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-12-22 15:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 15:58:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 15:58:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-12-22 15:58:10,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-12-22 15:58:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:58:10,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:58:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-22 15:58:10,995 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-22 15:58:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:58:10,996 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:58:10,996 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:58:10,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-12-22 15:58:10,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-12-22 15:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-22 15:58:10,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-22 15:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 15:58:10,997 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 15:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-12-22 15:58:10,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-12-22 15:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-22 15:58:10,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-22 15:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:58:10,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:58:10,998 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:58:10,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-12-22 15:58:10,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-12-22 15:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:58:10,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-12-22 15:58:11,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-12-22 15:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-12-22 15:58:11,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-12-22 15:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-22 15:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-22 15:58:11,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-22 15:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-12-22 15:58:11,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-12-22 15:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-12-22 15:58:11,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-12-22 15:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:58:11,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:58:11,001 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-22 15:58:11,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-22 15:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:58:11,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 15:58:11,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 15:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-12-22 15:58:11,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-12-22 15:58:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-12-22 15:58:11,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-12-22 15:58:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-12-22 15:58:11,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-12-22 15:58:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-12-22 15:58:11,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-12-22 15:58:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:58:11,003 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:58:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:58:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-12-22 15:58:11,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-12-22 15:58:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:58:11,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:58:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:58:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-12-22 15:58:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-12-22 15:58:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:58:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-12-22 15:58:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-12-22 15:58:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-12-22 15:58:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-12-22 15:58:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-22 15:58:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-22 15:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:58:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-12-22 15:58:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-12-22 15:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:58:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-12-22 15:58:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-12-22 15:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:58:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:58:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-12-22 15:58:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-12-22 15:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-12-22 15:58:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-12-22 15:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-12-22 15:58:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-12-22 15:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-12-22 15:58:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-12-22 15:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:58:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:58:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:58:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:58:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:58:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:58:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-12-22 15:58:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-12-22 15:58:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:58:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:58:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-12-22 15:58:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-12-22 15:58:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-12-22 15:58:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-12-22 15:58:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:58:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:58:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:58:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:58:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:58:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-12-22 15:58:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-12-22 15:58:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:58:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:58:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:58:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:58:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-22 15:58:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-22 15:58:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-12-22 15:58:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-12-22 15:58:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-12-22 15:58:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-12-22 15:58:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-22 15:58:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-22 15:58:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-12-22 15:58:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-12-22 15:58:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:58:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:58:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 15:58:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 15:58:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 15:58:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 15:58:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:58:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:58:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-22 15:58:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-22 15:58:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:58:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-22 15:58:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-22 15:58:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-22 15:58:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-22 15:58:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:58:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:58:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-22 15:58:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-22 15:58:11,949 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:58:11,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:58:12,107 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:58:19,376 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:58:19,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:58:19,398 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-12-22 15:58:19,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:58:19 BoogieIcfgContainer [2021-12-22 15:58:19,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:58:19,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:58:19,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:58:19,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:58:19,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:58:06" (1/3) ... [2021-12-22 15:58:19,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7967ca01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:58:19, skipping insertion in model container [2021-12-22 15:58:19,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:10" (2/3) ... [2021-12-22 15:58:19,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7967ca01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:58:19, skipping insertion in model container [2021-12-22 15:58:19,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:58:19" (3/3) ... [2021-12-22 15:58:19,412 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-22 15:58:19,416 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:58:19,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:58:19,471 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:58:19,485 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 [2021-12-22 15:58:19,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:58:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 2400 states, 1634 states have (on average 1.281517747858017) internal successors, (2094), 1699 states have internal predecessors, (2094), 647 states have call successors, (647), 118 states have call predecessors, (647), 117 states have return successors, (639), 620 states have call predecessors, (639), 639 states have call successors, (639) [2021-12-22 15:58:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-22 15:58:19,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:19,543 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:19,544 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)] === [2021-12-22 15:58:19,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:19,548 INFO L85 PathProgramCache]: Analyzing trace with hash 767019003, now seen corresponding path program 1 times [2021-12-22 15:58:19,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:19,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789960611] [2021-12-22 15:58:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:19,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:58:20,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789960611] [2021-12-22 15:58:20,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789960611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:20,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:20,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 15:58:20,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618688344] [2021-12-22 15:58:20,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:20,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:58:20,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:58:20,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:58:20,208 INFO L87 Difference]: Start difference. First operand has 2400 states, 1634 states have (on average 1.281517747858017) internal successors, (2094), 1699 states have internal predecessors, (2094), 647 states have call successors, (647), 118 states have call predecessors, (647), 117 states have return successors, (639), 620 states have call predecessors, (639), 639 states have call successors, (639) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-22 15:58:21,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:21,600 INFO L93 Difference]: Finished difference Result 7077 states and 10224 transitions. [2021-12-22 15:58:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:58:21,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2021-12-22 15:58:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:21,656 INFO L225 Difference]: With dead ends: 7077 [2021-12-22 15:58:21,656 INFO L226 Difference]: Without dead ends: 4682 [2021-12-22 15:58:21,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:58:21,693 INFO L933 BasicCegarLoop]: 3932 mSDtfsCounter, 3290 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 7201 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:21,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3290 Valid, 7201 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 15:58:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2021-12-22 15:58:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4645. [2021-12-22 15:58:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 3161 states have (on average 1.2654223347042075) internal successors, (4000), 3274 states have internal predecessors, (4000), 1250 states have call successors, (1250), 232 states have call predecessors, (1250), 231 states have return successors, (1249), 1207 states have call predecessors, (1249), 1247 states have call successors, (1249) [2021-12-22 15:58:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6499 transitions. [2021-12-22 15:58:22,109 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6499 transitions. Word has length 57 [2021-12-22 15:58:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:22,110 INFO L470 AbstractCegarLoop]: Abstraction has 4645 states and 6499 transitions. [2021-12-22 15:58:22,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-22 15:58:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6499 transitions. [2021-12-22 15:58:22,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-22 15:58:22,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:22,121 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:22,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:58:22,122 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)] === [2021-12-22 15:58:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash 694632445, now seen corresponding path program 1 times [2021-12-22 15:58:22,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:22,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402242027] [2021-12-22 15:58:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:22,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:58:22,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:22,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402242027] [2021-12-22 15:58:22,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402242027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:22,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:22,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:22,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872880395] [2021-12-22 15:58:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:22,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:22,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:22,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:22,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:22,477 INFO L87 Difference]: Start difference. First operand 4645 states and 6499 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-12-22 15:58:22,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:22,734 INFO L93 Difference]: Finished difference Result 4717 states and 6569 transitions. [2021-12-22 15:58:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:22,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 57 [2021-12-22 15:58:22,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:22,774 INFO L225 Difference]: With dead ends: 4717 [2021-12-22 15:58:22,774 INFO L226 Difference]: Without dead ends: 4715 [2021-12-22 15:58:22,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:22,787 INFO L933 BasicCegarLoop]: 3295 mSDtfsCounter, 3247 mSDsluCounter, 6621 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 9916 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:22,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3259 Valid, 9916 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4715 states. [2021-12-22 15:58:22,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4715 to 4713. [2021-12-22 15:58:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4713 states, 3206 states have (on average 1.2635683094198378) internal successors, (4051), 3323 states have internal predecessors, (4051), 1258 states have call successors, (1258), 247 states have call predecessors, (1258), 246 states have return successors, (1257), 1215 states have call predecessors, (1257), 1255 states have call successors, (1257) [2021-12-22 15:58:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4713 states to 4713 states and 6566 transitions. [2021-12-22 15:58:23,023 INFO L78 Accepts]: Start accepts. Automaton has 4713 states and 6566 transitions. Word has length 57 [2021-12-22 15:58:23,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:23,024 INFO L470 AbstractCegarLoop]: Abstraction has 4713 states and 6566 transitions. [2021-12-22 15:58:23,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-12-22 15:58:23,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4713 states and 6566 transitions. [2021-12-22 15:58:23,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-22 15:58:23,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:23,027 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:23,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:58:23,028 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)] === [2021-12-22 15:58:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -86012226, now seen corresponding path program 1 times [2021-12-22 15:58:23,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:23,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845212147] [2021-12-22 15:58:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:23,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:58:23,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:23,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845212147] [2021-12-22 15:58:23,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845212147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:23,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:23,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:23,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749621435] [2021-12-22 15:58:23,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:23,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:23,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:23,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:23,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:23,326 INFO L87 Difference]: Start difference. First operand 4713 states and 6566 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:23,516 INFO L93 Difference]: Finished difference Result 4719 states and 6571 transitions. [2021-12-22 15:58:23,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:23,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 62 [2021-12-22 15:58:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:23,544 INFO L225 Difference]: With dead ends: 4719 [2021-12-22 15:58:23,545 INFO L226 Difference]: Without dead ends: 4717 [2021-12-22 15:58:23,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:23,551 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:23,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3267 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2021-12-22 15:58:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 4717. [2021-12-22 15:58:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4717 states, 3209 states have (on average 1.2633219071361794) internal successors, (4054), 3326 states have internal predecessors, (4054), 1258 states have call successors, (1258), 248 states have call predecessors, (1258), 247 states have return successors, (1257), 1215 states have call predecessors, (1257), 1255 states have call successors, (1257) [2021-12-22 15:58:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4717 states to 4717 states and 6569 transitions. [2021-12-22 15:58:23,864 INFO L78 Accepts]: Start accepts. Automaton has 4717 states and 6569 transitions. Word has length 62 [2021-12-22 15:58:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:23,865 INFO L470 AbstractCegarLoop]: Abstraction has 4717 states and 6569 transitions. [2021-12-22 15:58:23,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4717 states and 6569 transitions. [2021-12-22 15:58:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-22 15:58:23,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:23,870 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:23,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:58:23,870 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)] === [2021-12-22 15:58:23,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:23,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1210292131, now seen corresponding path program 1 times [2021-12-22 15:58:23,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:23,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095005160] [2021-12-22 15:58:23,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:23,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 15:58:24,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:24,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095005160] [2021-12-22 15:58:24,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095005160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:24,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:24,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:24,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195317287] [2021-12-22 15:58:24,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:24,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:24,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:24,093 INFO L87 Difference]: Start difference. First operand 4717 states and 6569 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:24,308 INFO L93 Difference]: Finished difference Result 4723 states and 6574 transitions. [2021-12-22 15:58:24,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:24,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 67 [2021-12-22 15:58:24,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:24,329 INFO L225 Difference]: With dead ends: 4723 [2021-12-22 15:58:24,330 INFO L226 Difference]: Without dead ends: 4721 [2021-12-22 15:58:24,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:24,334 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:24,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3266 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:24,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4721 states. [2021-12-22 15:58:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4721 to 4721. [2021-12-22 15:58:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4721 states, 3212 states have (on average 1.2630759651307597) internal successors, (4057), 3329 states have internal predecessors, (4057), 1258 states have call successors, (1258), 249 states have call predecessors, (1258), 248 states have return successors, (1257), 1215 states have call predecessors, (1257), 1255 states have call successors, (1257) [2021-12-22 15:58:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4721 states to 4721 states and 6572 transitions. [2021-12-22 15:58:24,548 INFO L78 Accepts]: Start accepts. Automaton has 4721 states and 6572 transitions. Word has length 67 [2021-12-22 15:58:24,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:24,550 INFO L470 AbstractCegarLoop]: Abstraction has 4721 states and 6572 transitions. [2021-12-22 15:58:24,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:24,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4721 states and 6572 transitions. [2021-12-22 15:58:24,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-22 15:58:24,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:24,553 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, 1, 1] [2021-12-22 15:58:24,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:58:24,553 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)] === [2021-12-22 15:58:24,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash 326029790, now seen corresponding path program 1 times [2021-12-22 15:58:24,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:24,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796773745] [2021-12-22 15:58:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:24,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 15:58:24,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:24,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796773745] [2021-12-22 15:58:24,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796773745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:24,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:24,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:24,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175488475] [2021-12-22 15:58:24,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:24,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:24,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:24,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:24,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:24,778 INFO L87 Difference]: Start difference. First operand 4721 states and 6572 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:24,966 INFO L93 Difference]: Finished difference Result 4727 states and 6577 transitions. [2021-12-22 15:58:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:24,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 72 [2021-12-22 15:58:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:24,996 INFO L225 Difference]: With dead ends: 4727 [2021-12-22 15:58:24,996 INFO L226 Difference]: Without dead ends: 4725 [2021-12-22 15:58:25,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:25,003 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:25,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3265 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:25,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2021-12-22 15:58:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 4725. [2021-12-22 15:58:25,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4725 states, 3215 states have (on average 1.2628304821150855) internal successors, (4060), 3332 states have internal predecessors, (4060), 1258 states have call successors, (1258), 250 states have call predecessors, (1258), 249 states have return successors, (1257), 1215 states have call predecessors, (1257), 1255 states have call successors, (1257) [2021-12-22 15:58:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4725 states to 4725 states and 6575 transitions. [2021-12-22 15:58:25,242 INFO L78 Accepts]: Start accepts. Automaton has 4725 states and 6575 transitions. Word has length 72 [2021-12-22 15:58:25,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:25,244 INFO L470 AbstractCegarLoop]: Abstraction has 4725 states and 6575 transitions. [2021-12-22 15:58:25,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:25,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4725 states and 6575 transitions. [2021-12-22 15:58:25,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-22 15:58:25,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:25,246 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:25,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:58:25,246 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)] === [2021-12-22 15:58:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:25,247 INFO L85 PathProgramCache]: Analyzing trace with hash 741623997, now seen corresponding path program 1 times [2021-12-22 15:58:25,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:25,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934734359] [2021-12-22 15:58:25,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:25,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-22 15:58:25,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:25,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934734359] [2021-12-22 15:58:25,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934734359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:25,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:25,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:25,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145694428] [2021-12-22 15:58:25,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:25,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:25,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:25,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:25,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:25,526 INFO L87 Difference]: Start difference. First operand 4725 states and 6575 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:25,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:25,759 INFO L93 Difference]: Finished difference Result 4731 states and 6580 transitions. [2021-12-22 15:58:25,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:25,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 77 [2021-12-22 15:58:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:25,801 INFO L225 Difference]: With dead ends: 4731 [2021-12-22 15:58:25,802 INFO L226 Difference]: Without dead ends: 4729 [2021-12-22 15:58:25,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:25,809 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:25,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3264 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:25,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2021-12-22 15:58:25,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4729. [2021-12-22 15:58:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4729 states, 3218 states have (on average 1.2625854568054693) internal successors, (4063), 3335 states have internal predecessors, (4063), 1258 states have call successors, (1258), 251 states have call predecessors, (1258), 250 states have return successors, (1257), 1215 states have call predecessors, (1257), 1255 states have call successors, (1257) [2021-12-22 15:58:26,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4729 states to 4729 states and 6578 transitions. [2021-12-22 15:58:26,033 INFO L78 Accepts]: Start accepts. Automaton has 4729 states and 6578 transitions. Word has length 77 [2021-12-22 15:58:26,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:26,035 INFO L470 AbstractCegarLoop]: Abstraction has 4729 states and 6578 transitions. [2021-12-22 15:58:26,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:26,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4729 states and 6578 transitions. [2021-12-22 15:58:26,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-22 15:58:26,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:26,037 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, 1, 1] [2021-12-22 15:58:26,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:58:26,038 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)] === [2021-12-22 15:58:26,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:26,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1626448642, now seen corresponding path program 1 times [2021-12-22 15:58:26,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:26,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82399762] [2021-12-22 15:58:26,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:26,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:58:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-22 15:58:26,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:26,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82399762] [2021-12-22 15:58:26,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82399762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:26,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:26,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:26,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110347684] [2021-12-22 15:58:26,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:26,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:26,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:26,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:26,274 INFO L87 Difference]: Start difference. First operand 4729 states and 6578 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:26,468 INFO L93 Difference]: Finished difference Result 4735 states and 6583 transitions. [2021-12-22 15:58:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:26,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 82 [2021-12-22 15:58:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:26,488 INFO L225 Difference]: With dead ends: 4735 [2021-12-22 15:58:26,488 INFO L226 Difference]: Without dead ends: 4733 [2021-12-22 15:58:26,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:26,494 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:26,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3263 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4733 states. [2021-12-22 15:58:26,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4733 to 4733. [2021-12-22 15:58:26,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4733 states, 3221 states have (on average 1.2623408879230054) internal successors, (4066), 3338 states have internal predecessors, (4066), 1258 states have call successors, (1258), 252 states have call predecessors, (1258), 251 states have return successors, (1257), 1215 states have call predecessors, (1257), 1255 states have call successors, (1257) [2021-12-22 15:58:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 6581 transitions. [2021-12-22 15:58:26,789 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 6581 transitions. Word has length 82 [2021-12-22 15:58:26,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:26,789 INFO L470 AbstractCegarLoop]: Abstraction has 4733 states and 6581 transitions. [2021-12-22 15:58:26,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 6581 transitions. [2021-12-22 15:58:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-22 15:58:26,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:26,792 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:26,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:58:26,792 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)] === [2021-12-22 15:58:26,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash 991706208, now seen corresponding path program 1 times [2021-12-22 15:58:26,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:26,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499200135] [2021-12-22 15:58:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:26,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:58:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:58:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:58:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:58:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:58:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:58:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 15:58:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-22 15:58:27,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:27,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499200135] [2021-12-22 15:58:27,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499200135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:27,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:27,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 15:58:27,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599691902] [2021-12-22 15:58:27,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:27,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:58:27,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:27,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:58:27,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:58:27,034 INFO L87 Difference]: Start difference. First operand 4733 states and 6581 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-22 15:58:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:27,438 INFO L93 Difference]: Finished difference Result 9114 states and 12648 transitions. [2021-12-22 15:58:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:58:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 98 [2021-12-22 15:58:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:27,499 INFO L225 Difference]: With dead ends: 9114 [2021-12-22 15:58:27,500 INFO L226 Difference]: Without dead ends: 9068 [2021-12-22 15:58:27,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:58:27,514 INFO L933 BasicCegarLoop]: 4652 mSDtfsCounter, 2975 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 7940 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:27,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2975 Valid, 7940 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:27,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9068 states. [2021-12-22 15:58:27,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9068 to 9013. [2021-12-22 15:58:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 6139 states have (on average 1.263723733507086) internal successors, (7758), 6353 states have internal predecessors, (7758), 2390 states have call successors, (2390), 482 states have call predecessors, (2390), 481 states have return successors, (2390), 2312 states have call predecessors, (2390), 2387 states have call successors, (2390) [2021-12-22 15:58:28,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 12538 transitions. [2021-12-22 15:58:28,032 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 12538 transitions. Word has length 98 [2021-12-22 15:58:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:28,033 INFO L470 AbstractCegarLoop]: Abstraction has 9013 states and 12538 transitions. [2021-12-22 15:58:28,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-22 15:58:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 12538 transitions. [2021-12-22 15:58:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-22 15:58:28,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:28,079 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, 1, 1] [2021-12-22 15:58:28,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 15:58:28,079 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)] === [2021-12-22 15:58:28,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:28,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1953030429, now seen corresponding path program 1 times [2021-12-22 15:58:28,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:28,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736588312] [2021-12-22 15:58:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:28,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:58:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 15:58:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-22 15:58:28,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:28,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736588312] [2021-12-22 15:58:28,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736588312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:28,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:28,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:28,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011222835] [2021-12-22 15:58:28,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:28,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:28,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:28,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:28,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:28,314 INFO L87 Difference]: Start difference. First operand 9013 states and 12538 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:28,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:28,696 INFO L93 Difference]: Finished difference Result 9019 states and 12543 transitions. [2021-12-22 15:58:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:28,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 87 [2021-12-22 15:58:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:28,746 INFO L225 Difference]: With dead ends: 9019 [2021-12-22 15:58:28,746 INFO L226 Difference]: Without dead ends: 9017 [2021-12-22 15:58:28,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:28,761 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:28,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3262 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:28,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9017 states. [2021-12-22 15:58:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9017 to 9017. [2021-12-22 15:58:29,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9017 states, 6142 states have (on average 1.2635949202214263) internal successors, (7761), 6356 states have internal predecessors, (7761), 2390 states have call successors, (2390), 483 states have call predecessors, (2390), 482 states have return successors, (2390), 2312 states have call predecessors, (2390), 2387 states have call successors, (2390) [2021-12-22 15:58:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9017 states to 9017 states and 12541 transitions. [2021-12-22 15:58:29,245 INFO L78 Accepts]: Start accepts. Automaton has 9017 states and 12541 transitions. Word has length 87 [2021-12-22 15:58:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:29,245 INFO L470 AbstractCegarLoop]: Abstraction has 9017 states and 12541 transitions. [2021-12-22 15:58:29,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 9017 states and 12541 transitions. [2021-12-22 15:58:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 15:58:29,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:29,248 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:29,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 15:58:29,248 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)] === [2021-12-22 15:58:29,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1232671421, now seen corresponding path program 1 times [2021-12-22 15:58:29,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:29,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525534501] [2021-12-22 15:58:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:29,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:58:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:58:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:58:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:58:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:58:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:58:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 15:58:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:58:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:58:29,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:29,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525534501] [2021-12-22 15:58:29,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525534501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:29,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:29,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 15:58:29,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229384816] [2021-12-22 15:58:29,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:29,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:58:29,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:29,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:58:29,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:58:29,492 INFO L87 Difference]: Start difference. First operand 9017 states and 12541 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-22 15:58:30,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:58:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:31,685 INFO L93 Difference]: Finished difference Result 9648 states and 13306 transitions. [2021-12-22 15:58:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:58:31,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2021-12-22 15:58:31,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:31,727 INFO L225 Difference]: With dead ends: 9648 [2021-12-22 15:58:31,727 INFO L226 Difference]: Without dead ends: 9078 [2021-12-22 15:58:31,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:58:31,740 INFO L933 BasicCegarLoop]: 5529 mSDtfsCounter, 3261 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3261 SdHoareTripleChecker+Valid, 8772 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:31,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3261 Valid, 8772 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-22 15:58:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9078 states. [2021-12-22 15:58:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9078 to 9018. [2021-12-22 15:58:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9018 states, 6143 states have (on average 1.2633892235064301) internal successors, (7761), 6357 states have internal predecessors, (7761), 2390 states have call successors, (2390), 483 states have call predecessors, (2390), 482 states have return successors, (2390), 2312 states have call predecessors, (2390), 2387 states have call successors, (2390) [2021-12-22 15:58:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9018 states to 9018 states and 12541 transitions. [2021-12-22 15:58:32,188 INFO L78 Accepts]: Start accepts. Automaton has 9018 states and 12541 transitions. Word has length 103 [2021-12-22 15:58:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:32,189 INFO L470 AbstractCegarLoop]: Abstraction has 9018 states and 12541 transitions. [2021-12-22 15:58:32,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-22 15:58:32,189 INFO L276 IsEmpty]: Start isEmpty. Operand 9018 states and 12541 transitions. [2021-12-22 15:58:32,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-22 15:58:32,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:32,193 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:32,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 15:58:32,194 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)] === [2021-12-22 15:58:32,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1543778334, now seen corresponding path program 1 times [2021-12-22 15:58:32,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:32,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358320641] [2021-12-22 15:58:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:32,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:58:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 15:58:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:58:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-22 15:58:32,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:32,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358320641] [2021-12-22 15:58:32,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358320641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:32,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:32,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:32,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855721544] [2021-12-22 15:58:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:32,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:32,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:32,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:32,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:32,442 INFO L87 Difference]: Start difference. First operand 9018 states and 12541 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:32,743 INFO L93 Difference]: Finished difference Result 10144 states and 13839 transitions. [2021-12-22 15:58:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:32,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 92 [2021-12-22 15:58:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:32,785 INFO L225 Difference]: With dead ends: 10144 [2021-12-22 15:58:32,785 INFO L226 Difference]: Without dead ends: 10142 [2021-12-22 15:58:32,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:32,793 INFO L933 BasicCegarLoop]: 3415 mSDtfsCounter, 1956 mSDsluCounter, 8460 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 11875 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:32,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1961 Valid, 11875 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10142 states. [2021-12-22 15:58:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10142 to 10140. [2021-12-22 15:58:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10140 states, 6862 states have (on average 1.2544447682891284) internal successors, (8608), 7104 states have internal predecessors, (8608), 2614 states have call successors, (2614), 662 states have call predecessors, (2614), 661 states have return successors, (2614), 2522 states have call predecessors, (2614), 2611 states have call successors, (2614) [2021-12-22 15:58:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10140 states to 10140 states and 13836 transitions. [2021-12-22 15:58:33,407 INFO L78 Accepts]: Start accepts. Automaton has 10140 states and 13836 transitions. Word has length 92 [2021-12-22 15:58:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:33,408 INFO L470 AbstractCegarLoop]: Abstraction has 10140 states and 13836 transitions. [2021-12-22 15:58:33,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 10140 states and 13836 transitions. [2021-12-22 15:58:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-22 15:58:33,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:33,411 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:33,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 15:58:33,411 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)] === [2021-12-22 15:58:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -839634563, now seen corresponding path program 1 times [2021-12-22 15:58:33,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:33,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260937394] [2021-12-22 15:58:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:33,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:58:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 15:58:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:58:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:58:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-22 15:58:33,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:33,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260937394] [2021-12-22 15:58:33,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260937394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:33,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:33,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:33,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639392706] [2021-12-22 15:58:33,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:33,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:33,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:33,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:33,702 INFO L87 Difference]: Start difference. First operand 10140 states and 13836 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:34,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:34,086 INFO L93 Difference]: Finished difference Result 10146 states and 13841 transitions. [2021-12-22 15:58:34,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:34,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 97 [2021-12-22 15:58:34,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:34,131 INFO L225 Difference]: With dead ends: 10146 [2021-12-22 15:58:34,131 INFO L226 Difference]: Without dead ends: 10144 [2021-12-22 15:58:34,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:34,140 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:34,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3260 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10144 states. [2021-12-22 15:58:34,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10144 to 10144. [2021-12-22 15:58:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10144 states, 6865 states have (on average 1.2543335761107064) internal successors, (8611), 7107 states have internal predecessors, (8611), 2614 states have call successors, (2614), 663 states have call predecessors, (2614), 662 states have return successors, (2614), 2522 states have call predecessors, (2614), 2611 states have call successors, (2614) [2021-12-22 15:58:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10144 states to 10144 states and 13839 transitions. [2021-12-22 15:58:34,543 INFO L78 Accepts]: Start accepts. Automaton has 10144 states and 13839 transitions. Word has length 97 [2021-12-22 15:58:34,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:34,543 INFO L470 AbstractCegarLoop]: Abstraction has 10144 states and 13839 transitions. [2021-12-22 15:58:34,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 10144 states and 13839 transitions. [2021-12-22 15:58:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 15:58:34,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:34,546 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:34,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 15:58:34,546 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)] === [2021-12-22 15:58:34,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:34,547 INFO L85 PathProgramCache]: Analyzing trace with hash 974774491, now seen corresponding path program 1 times [2021-12-22 15:58:34,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:34,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245555281] [2021-12-22 15:58:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:34,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:58:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:58:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:58:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:58:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:58:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:58:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 15:58:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:58:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:58:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:58:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-22 15:58:34,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:34,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245555281] [2021-12-22 15:58:34,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245555281] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:34,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:34,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:34,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901455000] [2021-12-22 15:58:34,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:34,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:34,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:34,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:34,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:34,829 INFO L87 Difference]: Start difference. First operand 10144 states and 13839 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-12-22 15:58:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:35,131 INFO L93 Difference]: Finished difference Result 10150 states and 13844 transitions. [2021-12-22 15:58:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:35,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 113 [2021-12-22 15:58:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:35,173 INFO L225 Difference]: With dead ends: 10150 [2021-12-22 15:58:35,173 INFO L226 Difference]: Without dead ends: 10148 [2021-12-22 15:58:35,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:35,182 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3248 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:35,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3251 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10148 states. [2021-12-22 15:58:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10148 to 10148. [2021-12-22 15:58:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10148 states, 6868 states have (on average 1.2542224810716365) internal successors, (8614), 7110 states have internal predecessors, (8614), 2614 states have call successors, (2614), 664 states have call predecessors, (2614), 663 states have return successors, (2614), 2522 states have call predecessors, (2614), 2611 states have call successors, (2614) [2021-12-22 15:58:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10148 states to 10148 states and 13842 transitions. [2021-12-22 15:58:35,581 INFO L78 Accepts]: Start accepts. Automaton has 10148 states and 13842 transitions. Word has length 113 [2021-12-22 15:58:35,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:35,582 INFO L470 AbstractCegarLoop]: Abstraction has 10148 states and 13842 transitions. [2021-12-22 15:58:35,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-12-22 15:58:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 10148 states and 13842 transitions. [2021-12-22 15:58:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-22 15:58:35,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:35,584 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:35,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 15:58:35,585 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)] === [2021-12-22 15:58:35,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash 212508256, now seen corresponding path program 1 times [2021-12-22 15:58:35,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:35,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801131412] [2021-12-22 15:58:35,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:35,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:58:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 15:58:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:58:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:58:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 15:58:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:58:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 15:58:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 15:58:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:58:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:58:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 15:58:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-22 15:58:35,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:35,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801131412] [2021-12-22 15:58:35,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801131412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:35,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:35,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:35,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812298031] [2021-12-22 15:58:35,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:35,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:35,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:35,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:35,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:35,887 INFO L87 Difference]: Start difference. First operand 10148 states and 13842 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-12-22 15:58:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:36,173 INFO L93 Difference]: Finished difference Result 10154 states and 13847 transitions. [2021-12-22 15:58:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:36,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 118 [2021-12-22 15:58:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:36,215 INFO L225 Difference]: With dead ends: 10154 [2021-12-22 15:58:36,215 INFO L226 Difference]: Without dead ends: 10152 [2021-12-22 15:58:36,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:36,224 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3248 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:36,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3250 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:36,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10152 states. [2021-12-22 15:58:36,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10152 to 10152. [2021-12-22 15:58:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10152 states, 6871 states have (on average 1.2541114830446805) internal successors, (8617), 7113 states have internal predecessors, (8617), 2614 states have call successors, (2614), 665 states have call predecessors, (2614), 664 states have return successors, (2614), 2522 states have call predecessors, (2614), 2611 states have call successors, (2614) [2021-12-22 15:58:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10152 states to 10152 states and 13845 transitions. [2021-12-22 15:58:36,623 INFO L78 Accepts]: Start accepts. Automaton has 10152 states and 13845 transitions. Word has length 118 [2021-12-22 15:58:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:36,625 INFO L470 AbstractCegarLoop]: Abstraction has 10152 states and 13845 transitions. [2021-12-22 15:58:36,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-12-22 15:58:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 10152 states and 13845 transitions. [2021-12-22 15:58:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-22 15:58:36,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:36,628 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, 1, 1] [2021-12-22 15:58:36,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 15:58:36,628 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)] === [2021-12-22 15:58:36,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:36,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1517638050, now seen corresponding path program 1 times [2021-12-22 15:58:36,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:36,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265965823] [2021-12-22 15:58:36,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:36,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:58:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 15:58:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:58:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:58:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:58:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:58:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 15:58:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-22 15:58:36,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:36,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265965823] [2021-12-22 15:58:36,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265965823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:36,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:36,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:36,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133413302] [2021-12-22 15:58:36,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:36,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:36,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:36,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:36,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:36,900 INFO L87 Difference]: Start difference. First operand 10152 states and 13845 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:37,214 INFO L93 Difference]: Finished difference Result 10158 states and 13850 transitions. [2021-12-22 15:58:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:37,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 112 [2021-12-22 15:58:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:37,257 INFO L225 Difference]: With dead ends: 10158 [2021-12-22 15:58:37,258 INFO L226 Difference]: Without dead ends: 10154 [2021-12-22 15:58:37,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:37,268 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 3256 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:37,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3257 Valid, 9862 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:37,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10154 states. [2021-12-22 15:58:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10154 to 10154. [2021-12-22 15:58:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10154 states, 6873 states have (on average 1.2538920413211117) internal successors, (8618), 7114 states have internal predecessors, (8618), 2614 states have call successors, (2614), 666 states have call predecessors, (2614), 664 states have return successors, (2614), 2522 states have call predecessors, (2614), 2611 states have call successors, (2614) [2021-12-22 15:58:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 13846 transitions. [2021-12-22 15:58:37,665 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 13846 transitions. Word has length 112 [2021-12-22 15:58:37,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:37,666 INFO L470 AbstractCegarLoop]: Abstraction has 10154 states and 13846 transitions. [2021-12-22 15:58:37,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 13846 transitions. [2021-12-22 15:58:37,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-22 15:58:37,669 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:37,669 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:37,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 15:58:37,670 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)] === [2021-12-22 15:58:37,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:37,670 INFO L85 PathProgramCache]: Analyzing trace with hash -126420419, now seen corresponding path program 1 times [2021-12-22 15:58:37,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:37,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719193390] [2021-12-22 15:58:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:37,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 15:58:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:58:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:58:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 15:58:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:58:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 15:58:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:58:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 15:58:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:58:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:58:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:58:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:58:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 15:58:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:58:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:37,931 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-22 15:58:37,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:37,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719193390] [2021-12-22 15:58:37,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719193390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:37,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:37,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:58:37,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056857133] [2021-12-22 15:58:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:37,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:58:37,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:37,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:58:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:58:37,935 INFO L87 Difference]: Start difference. First operand 10154 states and 13846 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:38,318 INFO L93 Difference]: Finished difference Result 10154 states and 13846 transitions. [2021-12-22 15:58:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:58:38,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 117 [2021-12-22 15:58:38,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:38,363 INFO L225 Difference]: With dead ends: 10154 [2021-12-22 15:58:38,364 INFO L226 Difference]: Without dead ends: 10074 [2021-12-22 15:58:38,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:38,373 INFO L933 BasicCegarLoop]: 3292 mSDtfsCounter, 3252 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3252 SdHoareTripleChecker+Valid, 9859 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:38,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3252 Valid, 9859 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:58:38,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2021-12-22 15:58:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 10074. [2021-12-22 15:58:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10074 states, 6825 states have (on average 1.2543589743589743) internal successors, (8561), 7061 states have internal predecessors, (8561), 2595 states have call successors, (2595), 652 states have call predecessors, (2595), 652 states have return successors, (2598), 2509 states have call predecessors, (2598), 2595 states have call successors, (2598) [2021-12-22 15:58:38,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10074 states to 10074 states and 13754 transitions. [2021-12-22 15:58:38,852 INFO L78 Accepts]: Start accepts. Automaton has 10074 states and 13754 transitions. Word has length 117 [2021-12-22 15:58:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:38,852 INFO L470 AbstractCegarLoop]: Abstraction has 10074 states and 13754 transitions. [2021-12-22 15:58:38,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-12-22 15:58:38,853 INFO L276 IsEmpty]: Start isEmpty. Operand 10074 states and 13754 transitions. [2021-12-22 15:58:38,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-22 15:58:38,855 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:38,855 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:38,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 15:58:38,856 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:58:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash -796486734, now seen corresponding path program 1 times [2021-12-22 15:58:38,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:38,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219195377] [2021-12-22 15:58:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:38,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:58:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:58:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 15:58:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:58:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:58:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:58:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:58:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 15:58:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 15:58:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:58:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 15:58:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-22 15:58:39,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:39,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219195377] [2021-12-22 15:58:39,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219195377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:39,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:39,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:58:39,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734968299] [2021-12-22 15:58:39,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:39,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:58:39,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:58:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:58:39,295 INFO L87 Difference]: Start difference. First operand 10074 states and 13754 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:58:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:58:43,931 INFO L93 Difference]: Finished difference Result 10388 states and 14230 transitions. [2021-12-22 15:58:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:58:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2021-12-22 15:58:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:58:43,976 INFO L225 Difference]: With dead ends: 10388 [2021-12-22 15:58:43,976 INFO L226 Difference]: Without dead ends: 10386 [2021-12-22 15:58:43,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:58:43,987 INFO L933 BasicCegarLoop]: 3131 mSDtfsCounter, 2359 mSDsluCounter, 7611 mSDsCounter, 0 mSdLazyCounter, 2934 mSolverCounterSat, 1025 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 10742 SdHoareTripleChecker+Invalid, 3959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1025 IncrementalHoareTripleChecker+Valid, 2934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:58:43,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2667 Valid, 10742 Invalid, 3959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1025 Valid, 2934 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-22 15:58:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10386 states. [2021-12-22 15:58:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10386 to 10090. [2021-12-22 15:58:44,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10090 states, 6837 states have (on average 1.253912534737458) internal successors, (8573), 7073 states have internal predecessors, (8573), 2595 states have call successors, (2595), 656 states have call predecessors, (2595), 656 states have return successors, (2598), 2509 states have call predecessors, (2598), 2595 states have call successors, (2598) [2021-12-22 15:58:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10090 states to 10090 states and 13766 transitions. [2021-12-22 15:58:44,476 INFO L78 Accepts]: Start accepts. Automaton has 10090 states and 13766 transitions. Word has length 144 [2021-12-22 15:58:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:58:44,476 INFO L470 AbstractCegarLoop]: Abstraction has 10090 states and 13766 transitions. [2021-12-22 15:58:44,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:58:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10090 states and 13766 transitions. [2021-12-22 15:58:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-22 15:58:44,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:58:44,485 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:58:44,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 15:58:44,485 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:58:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:58:44,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1464581018, now seen corresponding path program 1 times [2021-12-22 15:58:44,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:58:44,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755920072] [2021-12-22 15:58:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:58:44,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:58:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:58:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:58:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:58:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:58:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 15:58:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:58:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:58:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:58:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:58:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:58:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 15:58:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 15:58:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:58:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 15:58:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 15:58:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 15:58:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 15:58:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 15:58:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 15:58:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:58:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:58:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 15:58:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:58:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-22 15:58:44,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:58:44,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755920072] [2021-12-22 15:58:44,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755920072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:58:44,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:58:44,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 15:58:44,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870320996] [2021-12-22 15:58:44,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:58:44,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 15:58:44,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:58:44,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 15:58:44,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:58:44,859 INFO L87 Difference]: Start difference. First operand 10090 states and 13766 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 15:58:49,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:58:51,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []