./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:51:56,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:51:56,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:51:56,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:51:56,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:51:56,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:51:56,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:51:56,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:51:56,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:51:56,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:51:56,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:51:56,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:51:56,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:51:56,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:51:56,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:51:56,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:51:56,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:51:56,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:51:56,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:51:56,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:51:56,256 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:51:56,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:51:56,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:51:56,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:51:56,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:51:56,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:51:56,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:51:56,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:51:56,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:51:56,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:51:56,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:51:56,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:51:56,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:51:56,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:51:56,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:51:56,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:51:56,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:51:56,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:51:56,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:51:56,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:51:56,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:51:56,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:51:56,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:51:56,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:51:56,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:51:56,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:51:56,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:51:56,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:51:56,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:51:56,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:51:56,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:51:56,310 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:51:56,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:51:56,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:51:56,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:51:56,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:51:56,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:51:56,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:51:56,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:51:56,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:51:56,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:51:56,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:51:56,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:51:56,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:51:56,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:51:56,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:51:56,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:51:56,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:51:56,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:51:56,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:51:56,314 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:51:56,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:51:56,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:51:56,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 [2022-07-12 15:51:56,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:51:56,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:51:56,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:51:56,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:51:56,601 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:51:56,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-12 15:51:56,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5d39f97/532802dd75364a9e99867031b939ea99/FLAG6d411a078 [2022-07-12 15:51:57,439 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:51:57,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-12 15:51:57,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5d39f97/532802dd75364a9e99867031b939ea99/FLAG6d411a078 [2022-07-12 15:51:57,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5d39f97/532802dd75364a9e99867031b939ea99 [2022-07-12 15:51:57,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:51:57,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:51:57,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:51:57,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:51:57,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:51:57,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:51:57" (1/1) ... [2022-07-12 15:51:57,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e620390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:51:57, skipping insertion in model container [2022-07-12 15:51:57,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:51:57" (1/1) ... [2022-07-12 15:51:57,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:51:57,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:52:01,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2022-07-12 15:52:01,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2022-07-12 15:52:01,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2022-07-12 15:52:01,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2022-07-12 15:52:01,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:52:01,890 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:52:02,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2022-07-12 15:52:02,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2022-07-12 15:52:02,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2022-07-12 15:52:02,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2022-07-12 15:52:02,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:52:02,554 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:52:02,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02 WrapperNode [2022-07-12 15:52:02,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:52:02,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:52:02,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:52:02,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:52:02,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:02,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,005 INFO L137 Inliner]: procedures = 547, calls = 4330, calls flagged for inlining = 248, calls inlined = 226, statements flattened = 8860 [2022-07-12 15:52:03,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:52:03,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:52:03,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:52:03,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:52:03,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:52:03,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:52:03,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:52:03,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:52:03,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (1/1) ... [2022-07-12 15:52:03,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:52:03,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:52:03,478 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) [2022-07-12 15:52:03,503 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 [2022-07-12 15:52:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:52:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:52:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:52:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:52:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:52:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:52:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-07-12 15:52:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-07-12 15:52:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-07-12 15:52:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-07-12 15:52:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:52:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:52:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_82 [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_82 [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:52:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:52:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 15:52:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 15:52:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2022-07-12 15:52:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2022-07-12 15:52:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 15:52:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 15:52:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2022-07-12 15:52:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2022-07-12 15:52:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 15:52:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 15:52:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-07-12 15:52:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-07-12 15:52:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2022-07-12 15:52:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2022-07-12 15:52:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-07-12 15:52:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-07-12 15:52:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:52:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:52:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:52:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:52:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:52:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:52:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 15:52:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 15:52:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 15:52:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 15:52:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:52:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:52:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:52:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-07-12 15:52:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-07-12 15:52:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-12 15:52:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-12 15:52:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:52:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:52:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 15:52:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 15:52:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 15:52:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-07-12 15:52:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-07-12 15:52:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-07-12 15:52:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-07-12 15:52:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-07-12 15:52:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-07-12 15:52:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:52:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:52:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-12 15:52:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-12 15:52:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 15:52:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 15:52:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 15:52:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:52:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:52:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 15:52:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-07-12 15:52:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-07-12 15:52:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 15:52:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 15:52:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:52:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:52:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:52:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:52:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:52:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:52:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:52:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:52:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:52:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:52:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-07-12 15:52:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-07-12 15:52:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_83 [2022-07-12 15:52:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_83 [2022-07-12 15:52:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-12 15:52:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-12 15:52:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-12 15:52:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-12 15:52:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:52:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:52:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-07-12 15:52:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-07-12 15:52:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:52:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:52:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-07-12 15:52:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-07-12 15:52:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:52:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:52:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:52:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-07-12 15:52:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-07-12 15:52:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-12 15:52:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-12 15:52:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:52:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:52:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:52:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:52:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:52:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:52:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-12 15:52:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-12 15:52:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:52:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:52:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 15:52:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 15:52:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:52:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:52:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_98 [2022-07-12 15:52:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_98 [2022-07-12 15:52:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-07-12 15:52:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-07-12 15:52:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 15:52:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 15:52:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-07-12 15:52:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-07-12 15:52:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-12 15:52:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-12 15:52:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:52:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:52:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-07-12 15:52:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-07-12 15:52:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:52:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:52:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-07-12 15:52:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-07-12 15:52:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:52:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:52:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:52:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:52:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-07-12 15:52:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-07-12 15:52:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:52:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:52:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-07-12 15:52:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-07-12 15:52:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-07-12 15:52:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-07-12 15:52:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-07-12 15:52:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-07-12 15:52:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 15:52:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 15:52:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-07-12 15:52:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-07-12 15:52:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-12 15:52:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-12 15:52:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-07-12 15:52:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-07-12 15:52:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-07-12 15:52:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-07-12 15:52:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 15:52:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 15:52:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:52:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:52:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-07-12 15:52:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-07-12 15:52:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:52:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:52:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:52:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:52:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:52:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:52:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:52:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:52:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-07-12 15:52:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-07-12 15:52:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:52:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:52:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:52:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:52:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-12 15:52:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-12 15:52:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:52:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:52:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 15:52:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 15:52:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:52:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-12 15:52:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-12 15:52:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:52:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:52:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:52:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-07-12 15:52:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-07-12 15:52:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-07-12 15:52:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-07-12 15:52:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_81 [2022-07-12 15:52:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_81 [2022-07-12 15:52:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:52:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:52:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:52:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2022-07-12 15:52:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2022-07-12 15:52:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-12 15:52:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-12 15:52:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:52:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:52:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:52:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:52:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 15:52:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 15:52:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_108 [2022-07-12 15:52:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_108 [2022-07-12 15:52:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 15:52:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 15:52:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-07-12 15:52:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-07-12 15:52:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_89 [2022-07-12 15:52:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_89 [2022-07-12 15:52:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_88 [2022-07-12 15:52:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_88 [2022-07-12 15:52:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-07-12 15:52:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-07-12 15:52:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-07-12 15:52:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-07-12 15:52:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:52:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:52:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-07-12 15:52:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-07-12 15:52:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:52:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:52:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:52:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:52:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 15:52:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 15:52:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:52:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:52:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-07-12 15:52:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-07-12 15:52:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2022-07-12 15:52:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2022-07-12 15:52:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 15:52:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-07-12 15:52:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-07-12 15:52:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-12 15:52:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-12 15:52:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 15:52:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 15:52:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:52:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:52:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-07-12 15:52:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-07-12 15:52:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-07-12 15:52:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-07-12 15:52:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2022-07-12 15:52:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2022-07-12 15:52:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-12 15:52:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-12 15:52:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_109 [2022-07-12 15:52:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_109 [2022-07-12 15:52:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_94 [2022-07-12 15:52:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_94 [2022-07-12 15:52:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-07-12 15:52:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-07-12 15:52:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_90 [2022-07-12 15:52:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_90 [2022-07-12 15:52:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 15:52:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 15:52:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-07-12 15:52:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-07-12 15:52:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-07-12 15:52:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-07-12 15:52:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:52:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:52:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 15:52:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 15:52:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 15:52:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 15:52:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 15:52:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 15:52:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2022-07-12 15:52:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2022-07-12 15:52:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 15:52:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 15:52:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 15:52:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:52:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:52:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 15:52:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 15:52:04,569 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:52:04,574 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:52:06,322 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:52:11,144 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:52:11,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:52:11,186 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 15:52:11,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:52:11 BoogieIcfgContainer [2022-07-12 15:52:11,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:52:11,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:52:11,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:52:11,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:52:11,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:51:57" (1/3) ... [2022-07-12 15:52:11,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b048806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:52:11, skipping insertion in model container [2022-07-12 15:52:11,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:52:02" (2/3) ... [2022-07-12 15:52:11,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b048806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:52:11, skipping insertion in model container [2022-07-12 15:52:11,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:52:11" (3/3) ... [2022-07-12 15:52:11,202 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-12 15:52:11,216 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:52:11,216 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:52:11,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:52:11,331 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4359ce83, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5485ba00 [2022-07-12 15:52:11,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:52:11,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 2957 states, 2041 states have (on average 1.365017148456639) internal successors, (2786), 2129 states have internal predecessors, (2786), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) [2022-07-12 15:52:11,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 15:52:11,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:11,358 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:11,359 INFO L420 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)] === [2022-07-12 15:52:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:11,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1410401004, now seen corresponding path program 1 times [2022-07-12 15:52:11,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:11,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176556223] [2022-07-12 15:52:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:11,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 15:52:12,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:12,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176556223] [2022-07-12 15:52:12,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176556223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:12,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:12,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:12,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369431953] [2022-07-12 15:52:12,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:12,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:12,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:12,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:12,508 INFO L87 Difference]: Start difference. First operand has 2957 states, 2041 states have (on average 1.365017148456639) internal successors, (2786), 2129 states have internal predecessors, (2786), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-12 15:52:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:12,894 INFO L93 Difference]: Finished difference Result 5889 states and 8815 transitions. [2022-07-12 15:52:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:12,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2022-07-12 15:52:12,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:12,937 INFO L225 Difference]: With dead ends: 5889 [2022-07-12 15:52:12,937 INFO L226 Difference]: Without dead ends: 2945 [2022-07-12 15:52:12,968 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:12,972 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 4188 mSDsluCounter, 8421 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 12639 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:12,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 12639 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2022-07-12 15:52:13,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2945. [2022-07-12 15:52:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2945 states, 2037 states have (on average 1.3284241531664212) internal successors, (2706), 2121 states have internal predecessors, (2706), 751 states have call successors, (751), 155 states have call predecessors, (751), 154 states have return successors, (748), 730 states have call predecessors, (748), 748 states have call successors, (748) [2022-07-12 15:52:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2945 states to 2945 states and 4205 transitions. [2022-07-12 15:52:13,354 INFO L78 Accepts]: Start accepts. Automaton has 2945 states and 4205 transitions. Word has length 55 [2022-07-12 15:52:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:13,355 INFO L495 AbstractCegarLoop]: Abstraction has 2945 states and 4205 transitions. [2022-07-12 15:52:13,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-12 15:52:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2945 states and 4205 transitions. [2022-07-12 15:52:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 15:52:13,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:13,359 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:13,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 15:52:13,359 INFO L420 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)] === [2022-07-12 15:52:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash 188182585, now seen corresponding path program 1 times [2022-07-12 15:52:13,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:13,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537530185] [2022-07-12 15:52:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:13,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 15:52:13,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:13,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537530185] [2022-07-12 15:52:13,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537530185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:13,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:13,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:13,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394137391] [2022-07-12 15:52:13,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:13,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:13,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:13,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:13,868 INFO L87 Difference]: Start difference. First operand 2945 states and 4205 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 15:52:14,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:14,061 INFO L93 Difference]: Finished difference Result 2951 states and 4210 transitions. [2022-07-12 15:52:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-07-12 15:52:14,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:14,081 INFO L225 Difference]: With dead ends: 2951 [2022-07-12 15:52:14,081 INFO L226 Difference]: Without dead ends: 2949 [2022-07-12 15:52:14,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:52:14,085 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:14,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2022-07-12 15:52:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2949. [2022-07-12 15:52:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2040 states have (on average 1.3279411764705882) internal successors, (2709), 2124 states have internal predecessors, (2709), 751 states have call successors, (751), 156 states have call predecessors, (751), 155 states have return successors, (748), 730 states have call predecessors, (748), 748 states have call successors, (748) [2022-07-12 15:52:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4208 transitions. [2022-07-12 15:52:14,268 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4208 transitions. Word has length 60 [2022-07-12 15:52:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:14,270 INFO L495 AbstractCegarLoop]: Abstraction has 2949 states and 4208 transitions. [2022-07-12 15:52:14,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 15:52:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4208 transitions. [2022-07-12 15:52:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 15:52:14,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:14,278 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:14,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 15:52:14,279 INFO L420 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)] === [2022-07-12 15:52:14,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:14,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1971274740, now seen corresponding path program 1 times [2022-07-12 15:52:14,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:14,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820931322] [2022-07-12 15:52:14,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:14,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 15:52:14,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:14,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820931322] [2022-07-12 15:52:14,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820931322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:14,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:14,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:14,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776050130] [2022-07-12 15:52:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:14,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:14,719 INFO L87 Difference]: Start difference. First operand 2949 states and 4208 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 15:52:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:14,942 INFO L93 Difference]: Finished difference Result 2955 states and 4213 transitions. [2022-07-12 15:52:14,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:14,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-07-12 15:52:14,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:14,963 INFO L225 Difference]: With dead ends: 2955 [2022-07-12 15:52:14,963 INFO L226 Difference]: Without dead ends: 2953 [2022-07-12 15:52:14,966 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:14,968 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:14,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2022-07-12 15:52:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2022-07-12 15:52:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2043 states have (on average 1.327459618208517) internal successors, (2712), 2127 states have internal predecessors, (2712), 751 states have call successors, (751), 157 states have call predecessors, (751), 156 states have return successors, (748), 730 states have call predecessors, (748), 748 states have call successors, (748) [2022-07-12 15:52:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4211 transitions. [2022-07-12 15:52:15,121 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4211 transitions. Word has length 65 [2022-07-12 15:52:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:15,124 INFO L495 AbstractCegarLoop]: Abstraction has 2953 states and 4211 transitions. [2022-07-12 15:52:15,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 15:52:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4211 transitions. [2022-07-12 15:52:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 15:52:15,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:15,126 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:15,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 15:52:15,127 INFO L420 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)] === [2022-07-12 15:52:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:15,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1386568487, now seen corresponding path program 1 times [2022-07-12 15:52:15,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:15,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551411597] [2022-07-12 15:52:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:15,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 15:52:15,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:15,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551411597] [2022-07-12 15:52:15,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551411597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:15,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:15,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:15,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655359797] [2022-07-12 15:52:15,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:15,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:15,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:15,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:15,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:15,529 INFO L87 Difference]: Start difference. First operand 2953 states and 4211 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 15:52:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:15,700 INFO L93 Difference]: Finished difference Result 2959 states and 4216 transitions. [2022-07-12 15:52:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:15,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2022-07-12 15:52:15,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:15,720 INFO L225 Difference]: With dead ends: 2959 [2022-07-12 15:52:15,721 INFO L226 Difference]: Without dead ends: 2957 [2022-07-12 15:52:15,724 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:15,725 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:15,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4175 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:15,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-07-12 15:52:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2957. [2022-07-12 15:52:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 2046 states have (on average 1.3269794721407624) internal successors, (2715), 2130 states have internal predecessors, (2715), 751 states have call successors, (751), 158 states have call predecessors, (751), 157 states have return successors, (748), 730 states have call predecessors, (748), 748 states have call successors, (748) [2022-07-12 15:52:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 4214 transitions. [2022-07-12 15:52:15,875 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 4214 transitions. Word has length 70 [2022-07-12 15:52:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:15,876 INFO L495 AbstractCegarLoop]: Abstraction has 2957 states and 4214 transitions. [2022-07-12 15:52:15,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 15:52:15,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 4214 transitions. [2022-07-12 15:52:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 15:52:15,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:15,878 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:15,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 15:52:15,879 INFO L420 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)] === [2022-07-12 15:52:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:15,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2122195668, now seen corresponding path program 1 times [2022-07-12 15:52:15,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:15,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492019000] [2022-07-12 15:52:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-12 15:52:16,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:16,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492019000] [2022-07-12 15:52:16,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492019000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:16,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:16,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:16,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050187018] [2022-07-12 15:52:16,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:16,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:16,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:16,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:16,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:16,258 INFO L87 Difference]: Start difference. First operand 2957 states and 4214 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 15:52:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:16,475 INFO L93 Difference]: Finished difference Result 2963 states and 4219 transitions. [2022-07-12 15:52:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:16,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2022-07-12 15:52:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:16,496 INFO L225 Difference]: With dead ends: 2963 [2022-07-12 15:52:16,496 INFO L226 Difference]: Without dead ends: 2961 [2022-07-12 15:52:16,500 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:16,501 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:16,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-07-12 15:52:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2961. [2022-07-12 15:52:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2049 states have (on average 1.3265007320644218) internal successors, (2718), 2133 states have internal predecessors, (2718), 751 states have call successors, (751), 159 states have call predecessors, (751), 158 states have return successors, (748), 730 states have call predecessors, (748), 748 states have call successors, (748) [2022-07-12 15:52:16,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 4217 transitions. [2022-07-12 15:52:16,668 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 4217 transitions. Word has length 75 [2022-07-12 15:52:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:16,668 INFO L495 AbstractCegarLoop]: Abstraction has 2961 states and 4217 transitions. [2022-07-12 15:52:16,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 15:52:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 4217 transitions. [2022-07-12 15:52:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 15:52:16,671 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:16,671 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 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] [2022-07-12 15:52:16,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 15:52:16,672 INFO L420 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)] === [2022-07-12 15:52:16,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:16,672 INFO L85 PathProgramCache]: Analyzing trace with hash -997599187, now seen corresponding path program 1 times [2022-07-12 15:52:16,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:16,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664041508] [2022-07-12 15:52:16,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:16,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:52:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:52:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 15:52:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 15:52:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-12 15:52:17,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:17,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664041508] [2022-07-12 15:52:17,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664041508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:17,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:17,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:52:17,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207388866] [2022-07-12 15:52:17,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:17,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:52:17,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:17,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:52:17,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:52:17,036 INFO L87 Difference]: Start difference. First operand 2961 states and 4217 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:52:17,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:17,349 INFO L93 Difference]: Finished difference Result 5652 states and 7908 transitions. [2022-07-12 15:52:17,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:52:17,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2022-07-12 15:52:17,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:17,401 INFO L225 Difference]: With dead ends: 5652 [2022-07-12 15:52:17,401 INFO L226 Difference]: Without dead ends: 5171 [2022-07-12 15:52:17,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:52:17,410 INFO L413 NwaCegarLoop]: 6205 mSDtfsCounter, 3064 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:17,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 10401 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:52:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5171 states. [2022-07-12 15:52:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5171 to 5121. [2022-07-12 15:52:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 3495 states have (on average 1.3195994277539342) internal successors, (4612), 3640 states have internal predecessors, (4612), 1324 states have call successors, (1324), 300 states have call predecessors, (1324), 299 states have return successors, (1321), 1288 states have call predecessors, (1321), 1321 states have call successors, (1321) [2022-07-12 15:52:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 7257 transitions. [2022-07-12 15:52:17,706 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 7257 transitions. Word has length 91 [2022-07-12 15:52:17,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:17,707 INFO L495 AbstractCegarLoop]: Abstraction has 5121 states and 7257 transitions. [2022-07-12 15:52:17,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:52:17,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 7257 transitions. [2022-07-12 15:52:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 15:52:17,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:17,710 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 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] [2022-07-12 15:52:17,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 15:52:17,710 INFO L420 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)] === [2022-07-12 15:52:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash 910858603, now seen corresponding path program 1 times [2022-07-12 15:52:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:17,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036958474] [2022-07-12 15:52:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:52:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:52:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 15:52:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:18,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:18,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 15:52:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-12 15:52:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:18,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036958474] [2022-07-12 15:52:18,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036958474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:18,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:18,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:52:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532603977] [2022-07-12 15:52:18,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:18,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:52:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:52:18,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:52:18,027 INFO L87 Difference]: Start difference. First operand 5121 states and 7257 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:52:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:18,541 INFO L93 Difference]: Finished difference Result 9532 states and 13439 transitions. [2022-07-12 15:52:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:52:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2022-07-12 15:52:18,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:18,634 INFO L225 Difference]: With dead ends: 9532 [2022-07-12 15:52:18,634 INFO L226 Difference]: Without dead ends: 9489 [2022-07-12 15:52:18,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:52:18,642 INFO L413 NwaCegarLoop]: 6205 mSDtfsCounter, 3062 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:18,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3062 Valid, 10401 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:52:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9489 states. [2022-07-12 15:52:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9489 to 9439. [2022-07-12 15:52:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 6385 states have (on average 1.3148003132341426) internal successors, (8395), 6652 states have internal predecessors, (8395), 2470 states have call successors, (2470), 582 states have call predecessors, (2470), 581 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2022-07-12 15:52:19,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 13332 transitions. [2022-07-12 15:52:19,155 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 13332 transitions. Word has length 91 [2022-07-12 15:52:19,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:19,155 INFO L495 AbstractCegarLoop]: Abstraction has 9439 states and 13332 transitions. [2022-07-12 15:52:19,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:52:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 13332 transitions. [2022-07-12 15:52:19,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 15:52:19,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:19,158 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 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] [2022-07-12 15:52:19,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 15:52:19,159 INFO L420 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)] === [2022-07-12 15:52:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:19,159 INFO L85 PathProgramCache]: Analyzing trace with hash 418232429, now seen corresponding path program 1 times [2022-07-12 15:52:19,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:19,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389212615] [2022-07-12 15:52:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:19,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:52:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:52:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 15:52:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 15:52:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-12 15:52:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:19,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389212615] [2022-07-12 15:52:19,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389212615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:19,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:19,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:52:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893666210] [2022-07-12 15:52:19,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:19,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:52:19,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:19,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:52:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:52:19,548 INFO L87 Difference]: Start difference. First operand 9439 states and 13332 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:52:19,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:19,900 INFO L93 Difference]: Finished difference Result 11680 states and 16455 transitions. [2022-07-12 15:52:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:52:19,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2022-07-12 15:52:19,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:19,958 INFO L225 Difference]: With dead ends: 11680 [2022-07-12 15:52:19,958 INFO L226 Difference]: Without dead ends: 9472 [2022-07-12 15:52:19,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:52:19,980 INFO L413 NwaCegarLoop]: 5787 mSDtfsCounter, 4157 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:19,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4157 Valid, 8861 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9472 states. [2022-07-12 15:52:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9472 to 9424. [2022-07-12 15:52:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9424 states, 6376 states have (on average 1.3146173149309912) internal successors, (8382), 6642 states have internal predecessors, (8382), 2464 states have call successors, (2464), 582 states have call predecessors, (2464), 581 states have return successors, (2461), 2399 states have call predecessors, (2461), 2461 states have call successors, (2461) [2022-07-12 15:52:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9424 states to 9424 states and 13307 transitions. [2022-07-12 15:52:20,572 INFO L78 Accepts]: Start accepts. Automaton has 9424 states and 13307 transitions. Word has length 91 [2022-07-12 15:52:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:20,572 INFO L495 AbstractCegarLoop]: Abstraction has 9424 states and 13307 transitions. [2022-07-12 15:52:20,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:52:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 9424 states and 13307 transitions. [2022-07-12 15:52:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 15:52:20,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:20,575 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 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] [2022-07-12 15:52:20,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 15:52:20,576 INFO L420 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)] === [2022-07-12 15:52:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:20,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1372172587, now seen corresponding path program 1 times [2022-07-12 15:52:20,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:20,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960827756] [2022-07-12 15:52:20,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:20,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:52:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:52:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 15:52:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 15:52:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-12 15:52:20,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:20,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960827756] [2022-07-12 15:52:20,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960827756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:20,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:20,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:20,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032304775] [2022-07-12 15:52:20,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:20,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:20,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:20,945 INFO L87 Difference]: Start difference. First operand 9424 states and 13307 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 15:52:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:21,286 INFO L93 Difference]: Finished difference Result 9430 states and 13312 transitions. [2022-07-12 15:52:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:21,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2022-07-12 15:52:21,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:21,340 INFO L225 Difference]: With dead ends: 9430 [2022-07-12 15:52:21,340 INFO L226 Difference]: Without dead ends: 9428 [2022-07-12 15:52:21,351 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:21,353 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4157 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:21,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:21,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9428 states. [2022-07-12 15:52:21,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9428 to 9428. [2022-07-12 15:52:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9428 states, 6379 states have (on average 1.3144693525630977) internal successors, (8385), 6645 states have internal predecessors, (8385), 2464 states have call successors, (2464), 583 states have call predecessors, (2464), 582 states have return successors, (2461), 2399 states have call predecessors, (2461), 2461 states have call successors, (2461) [2022-07-12 15:52:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9428 states to 9428 states and 13310 transitions. [2022-07-12 15:52:21,858 INFO L78 Accepts]: Start accepts. Automaton has 9428 states and 13310 transitions. Word has length 91 [2022-07-12 15:52:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:21,859 INFO L495 AbstractCegarLoop]: Abstraction has 9428 states and 13310 transitions. [2022-07-12 15:52:21,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 15:52:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 9428 states and 13310 transitions. [2022-07-12 15:52:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 15:52:21,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:21,862 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:21,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 15:52:21,862 INFO L420 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)] === [2022-07-12 15:52:21,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:21,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1618110028, now seen corresponding path program 1 times [2022-07-12 15:52:21,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:21,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089992590] [2022-07-12 15:52:21,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:21,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 15:52:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 15:52:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-12 15:52:22,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:22,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089992590] [2022-07-12 15:52:22,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089992590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:22,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:22,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444406903] [2022-07-12 15:52:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:22,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:22,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:22,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:22,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:22,261 INFO L87 Difference]: Start difference. First operand 9428 states and 13310 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 15:52:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:22,749 INFO L93 Difference]: Finished difference Result 14358 states and 20208 transitions. [2022-07-12 15:52:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:22,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 85 [2022-07-12 15:52:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:22,828 INFO L225 Difference]: With dead ends: 14358 [2022-07-12 15:52:22,828 INFO L226 Difference]: Without dead ends: 14356 [2022-07-12 15:52:22,845 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:22,846 INFO L413 NwaCegarLoop]: 5221 mSDtfsCounter, 3766 mSDsluCounter, 12543 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3773 SdHoareTripleChecker+Valid, 17764 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:22,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3773 Valid, 17764 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:22,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14356 states. [2022-07-12 15:52:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14356 to 14344. [2022-07-12 15:52:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14344 states, 9673 states have (on average 1.312829525483304) internal successors, (12699), 10071 states have internal predecessors, (12699), 3724 states have call successors, (3724), 969 states have call predecessors, (3724), 944 states have return successors, (3773), 3611 states have call predecessors, (3773), 3721 states have call successors, (3773) [2022-07-12 15:52:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14344 states to 14344 states and 20196 transitions. [2022-07-12 15:52:23,754 INFO L78 Accepts]: Start accepts. Automaton has 14344 states and 20196 transitions. Word has length 85 [2022-07-12 15:52:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:23,754 INFO L495 AbstractCegarLoop]: Abstraction has 14344 states and 20196 transitions. [2022-07-12 15:52:23,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 15:52:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 14344 states and 20196 transitions. [2022-07-12 15:52:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-12 15:52:23,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:23,760 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:23,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 15:52:23,760 INFO L420 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)] === [2022-07-12 15:52:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash -267368935, now seen corresponding path program 1 times [2022-07-12 15:52:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:23,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651533003] [2022-07-12 15:52:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 15:52:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 15:52:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 15:52:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 15:52:24,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:24,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651533003] [2022-07-12 15:52:24,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651533003] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:24,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:24,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:24,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598883702] [2022-07-12 15:52:24,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:24,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:24,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:24,138 INFO L87 Difference]: Start difference. First operand 14344 states and 20196 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2022-07-12 15:52:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:24,802 INFO L93 Difference]: Finished difference Result 14350 states and 20201 transitions. [2022-07-12 15:52:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:24,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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 90 [2022-07-12 15:52:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:24,882 INFO L225 Difference]: With dead ends: 14350 [2022-07-12 15:52:24,883 INFO L226 Difference]: Without dead ends: 14348 [2022-07-12 15:52:24,896 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:24,897 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4171 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:24,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4171 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:52:24,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2022-07-12 15:52:25,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 14348. [2022-07-12 15:52:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14348 states, 9676 states have (on average 1.312732534105002) internal successors, (12702), 10074 states have internal predecessors, (12702), 3724 states have call successors, (3724), 970 states have call predecessors, (3724), 945 states have return successors, (3773), 3611 states have call predecessors, (3773), 3721 states have call successors, (3773) [2022-07-12 15:52:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14348 states to 14348 states and 20199 transitions. [2022-07-12 15:52:25,741 INFO L78 Accepts]: Start accepts. Automaton has 14348 states and 20199 transitions. Word has length 90 [2022-07-12 15:52:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:25,741 INFO L495 AbstractCegarLoop]: Abstraction has 14348 states and 20199 transitions. [2022-07-12 15:52:25,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2022-07-12 15:52:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 14348 states and 20199 transitions. [2022-07-12 15:52:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 15:52:25,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:25,746 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:25,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 15:52:25,747 INFO L420 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)] === [2022-07-12 15:52:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash -825251692, now seen corresponding path program 1 times [2022-07-12 15:52:25,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:25,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745071463] [2022-07-12 15:52:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:25,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:25,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 15:52:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 15:52:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 15:52:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:52:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-12 15:52:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:26,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745071463] [2022-07-12 15:52:26,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745071463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:26,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:26,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:26,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564229250] [2022-07-12 15:52:26,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:26,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:26,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:26,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:26,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:26,070 INFO L87 Difference]: Start difference. First operand 14348 states and 20199 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 15:52:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:26,663 INFO L93 Difference]: Finished difference Result 15044 states and 20976 transitions. [2022-07-12 15:52:26,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:26,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2022-07-12 15:52:26,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:26,738 INFO L225 Difference]: With dead ends: 15044 [2022-07-12 15:52:26,738 INFO L226 Difference]: Without dead ends: 15042 [2022-07-12 15:52:26,753 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:26,755 INFO L413 NwaCegarLoop]: 4229 mSDtfsCounter, 4074 mSDsluCounter, 8640 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 12869 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:26,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 12869 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15042 states. [2022-07-12 15:52:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15042 to 15038. [2022-07-12 15:52:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15038 states, 10062 states have (on average 1.3032200357781754) internal successors, (13113), 10461 states have internal predecessors, (13113), 3905 states have call successors, (3905), 1093 states have call predecessors, (3905), 1068 states have return successors, (3954), 3792 states have call predecessors, (3954), 3902 states have call successors, (3954) [2022-07-12 15:52:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15038 states to 15038 states and 20972 transitions. [2022-07-12 15:52:27,540 INFO L78 Accepts]: Start accepts. Automaton has 15038 states and 20972 transitions. Word has length 95 [2022-07-12 15:52:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:27,540 INFO L495 AbstractCegarLoop]: Abstraction has 15038 states and 20972 transitions. [2022-07-12 15:52:27,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 15:52:27,541 INFO L276 IsEmpty]: Start isEmpty. Operand 15038 states and 20972 transitions. [2022-07-12 15:52:27,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-12 15:52:27,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:27,544 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:27,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 15:52:27,544 INFO L420 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)] === [2022-07-12 15:52:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash 570905963, now seen corresponding path program 1 times [2022-07-12 15:52:27,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:27,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622667129] [2022-07-12 15:52:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:27,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:52:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:52:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 15:52:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 15:52:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 15:52:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 15:52:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:52:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:52:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-12 15:52:27,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:27,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622667129] [2022-07-12 15:52:27,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622667129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:27,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:27,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:27,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061194887] [2022-07-12 15:52:27,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:27,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:27,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:27,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:27,853 INFO L87 Difference]: Start difference. First operand 15038 states and 20972 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:52:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:28,449 INFO L93 Difference]: Finished difference Result 15044 states and 20977 transitions. [2022-07-12 15:52:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2022-07-12 15:52:28,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:28,518 INFO L225 Difference]: With dead ends: 15044 [2022-07-12 15:52:28,519 INFO L226 Difference]: Without dead ends: 15042 [2022-07-12 15:52:28,529 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:28,530 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4157 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4161 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:28,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4161 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15042 states. [2022-07-12 15:52:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15042 to 15042. [2022-07-12 15:52:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15042 states, 10065 states have (on average 1.303129657228018) internal successors, (13116), 10464 states have internal predecessors, (13116), 3905 states have call successors, (3905), 1094 states have call predecessors, (3905), 1069 states have return successors, (3954), 3792 states have call predecessors, (3954), 3902 states have call successors, (3954) [2022-07-12 15:52:29,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15042 states to 15042 states and 20975 transitions. [2022-07-12 15:52:29,288 INFO L78 Accepts]: Start accepts. Automaton has 15042 states and 20975 transitions. Word has length 111 [2022-07-12 15:52:29,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:29,289 INFO L495 AbstractCegarLoop]: Abstraction has 15042 states and 20975 transitions. [2022-07-12 15:52:29,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:52:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 15042 states and 20975 transitions. [2022-07-12 15:52:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 15:52:29,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:29,296 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:52:29,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 15:52:29,297 INFO L420 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)] === [2022-07-12 15:52:29,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:29,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1072058228, now seen corresponding path program 1 times [2022-07-12 15:52:29,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:29,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425978092] [2022-07-12 15:52:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:29,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 15:52:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 15:52:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 15:52:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:52:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:52:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 15:52:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-12 15:52:29,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:29,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425978092] [2022-07-12 15:52:29,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425978092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:29,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:29,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:29,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251023463] [2022-07-12 15:52:29,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:29,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:29,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:29,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:29,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:29,621 INFO L87 Difference]: Start difference. First operand 15042 states and 20975 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:52:30,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:30,158 INFO L93 Difference]: Finished difference Result 15048 states and 20980 transitions. [2022-07-12 15:52:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:30,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2022-07-12 15:52:30,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:30,244 INFO L225 Difference]: With dead ends: 15048 [2022-07-12 15:52:30,245 INFO L226 Difference]: Without dead ends: 15046 [2022-07-12 15:52:30,260 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:30,261 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:30,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:30,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15046 states. [2022-07-12 15:52:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15046 to 15046. [2022-07-12 15:52:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15046 states, 10068 states have (on average 1.3030393325387366) internal successors, (13119), 10467 states have internal predecessors, (13119), 3905 states have call successors, (3905), 1095 states have call predecessors, (3905), 1070 states have return successors, (3954), 3792 states have call predecessors, (3954), 3902 states have call successors, (3954) [2022-07-12 15:52:31,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15046 states to 15046 states and 20978 transitions. [2022-07-12 15:52:31,187 INFO L78 Accepts]: Start accepts. Automaton has 15046 states and 20978 transitions. Word has length 105 [2022-07-12 15:52:31,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:31,188 INFO L495 AbstractCegarLoop]: Abstraction has 15046 states and 20978 transitions. [2022-07-12 15:52:31,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:52:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 15046 states and 20978 transitions. [2022-07-12 15:52:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-12 15:52:31,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:31,192 INFO L195 NwaCegarLoop]: 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] [2022-07-12 15:52:31,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 15:52:31,193 INFO L420 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)] === [2022-07-12 15:52:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:31,193 INFO L85 PathProgramCache]: Analyzing trace with hash -336099495, now seen corresponding path program 1 times [2022-07-12 15:52:31,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:31,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3420319] [2022-07-12 15:52:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:31,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 15:52:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 15:52:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 15:52:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:52:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:52:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 15:52:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 15:52:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-12 15:52:31,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:31,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3420319] [2022-07-12 15:52:31,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3420319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:31,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:31,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373446457] [2022-07-12 15:52:31,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:31,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:31,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:31,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:31,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:31,515 INFO L87 Difference]: Start difference. First operand 15046 states and 20978 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 15:52:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:32,053 INFO L93 Difference]: Finished difference Result 15052 states and 20983 transitions. [2022-07-12 15:52:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2022-07-12 15:52:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:32,133 INFO L225 Difference]: With dead ends: 15052 [2022-07-12 15:52:32,133 INFO L226 Difference]: Without dead ends: 15050 [2022-07-12 15:52:32,148 INFO L412 NwaCegarLoop]: 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 [2022-07-12 15:52:32,149 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4165 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4167 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:32,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4167 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15050 states. [2022-07-12 15:52:32,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15050 to 15050. [2022-07-12 15:52:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15050 states, 10071 states have (on average 1.3029490616621984) internal successors, (13122), 10470 states have internal predecessors, (13122), 3905 states have call successors, (3905), 1096 states have call predecessors, (3905), 1071 states have return successors, (3954), 3792 states have call predecessors, (3954), 3902 states have call successors, (3954) [2022-07-12 15:52:33,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15050 states to 15050 states and 20981 transitions. [2022-07-12 15:52:33,040 INFO L78 Accepts]: Start accepts. Automaton has 15050 states and 20981 transitions. Word has length 110 [2022-07-12 15:52:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:33,041 INFO L495 AbstractCegarLoop]: Abstraction has 15050 states and 20981 transitions. [2022-07-12 15:52:33,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 15:52:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 15050 states and 20981 transitions. [2022-07-12 15:52:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-12 15:52:33,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:33,046 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:52:33,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 15:52:33,047 INFO L420 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)] === [2022-07-12 15:52:33,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:33,047 INFO L85 PathProgramCache]: Analyzing trace with hash -551620254, now seen corresponding path program 1 times [2022-07-12 15:52:33,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:33,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501647882] [2022-07-12 15:52:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:33,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 15:52:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 15:52:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 15:52:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 15:52:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 15:52:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 15:52:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 15:52:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:52:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:52:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 15:52:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:52:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-07-12 15:52:33,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:33,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501647882] [2022-07-12 15:52:33,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501647882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:33,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:33,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:33,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612355556] [2022-07-12 15:52:33,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:33,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:33,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:33,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:33,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:33,448 INFO L87 Difference]: Start difference. First operand 15050 states and 20981 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:52:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:34,121 INFO L93 Difference]: Finished difference Result 15056 states and 20986 transitions. [2022-07-12 15:52:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:34,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2022-07-12 15:52:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:34,209 INFO L225 Difference]: With dead ends: 15056 [2022-07-12 15:52:34,210 INFO L226 Difference]: Without dead ends: 15052 [2022-07-12 15:52:34,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:52:34,227 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4157 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:34,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4158 Valid, 12585 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:34,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15052 states. [2022-07-12 15:52:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15052 to 15052. [2022-07-12 15:52:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15052 states, 10073 states have (on average 1.3027896356596842) internal successors, (13123), 10471 states have internal predecessors, (13123), 3905 states have call successors, (3905), 1097 states have call predecessors, (3905), 1071 states have return successors, (3954), 3792 states have call predecessors, (3954), 3902 states have call successors, (3954) [2022-07-12 15:52:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15052 states to 15052 states and 20982 transitions. [2022-07-12 15:52:35,032 INFO L78 Accepts]: Start accepts. Automaton has 15052 states and 20982 transitions. Word has length 126 [2022-07-12 15:52:35,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:35,032 INFO L495 AbstractCegarLoop]: Abstraction has 15052 states and 20982 transitions. [2022-07-12 15:52:35,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:52:35,033 INFO L276 IsEmpty]: Start isEmpty. Operand 15052 states and 20982 transitions. [2022-07-12 15:52:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 15:52:35,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:35,038 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:52:35,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 15:52:35,038 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:52:35,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:35,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1928905721, now seen corresponding path program 1 times [2022-07-12 15:52:35,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:35,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923321486] [2022-07-12 15:52:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:35,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 15:52:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 15:52:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 15:52:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 15:52:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 15:52:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 15:52:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:52:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:52:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 15:52:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 15:52:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 15:52:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 15:52:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-12 15:52:35,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:35,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923321486] [2022-07-12 15:52:35,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923321486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:35,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:35,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:52:35,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117661757] [2022-07-12 15:52:35,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:35,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:52:35,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:35,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:52:35,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:52:35,382 INFO L87 Difference]: Start difference. First operand 15052 states and 20982 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:52:36,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:36,146 INFO L93 Difference]: Finished difference Result 17323 states and 23786 transitions. [2022-07-12 15:52:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:52:36,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2022-07-12 15:52:36,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:36,218 INFO L225 Difference]: With dead ends: 17323 [2022-07-12 15:52:36,219 INFO L226 Difference]: Without dead ends: 17219 [2022-07-12 15:52:36,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:52:36,229 INFO L413 NwaCegarLoop]: 4328 mSDtfsCounter, 3840 mSDsluCounter, 9566 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3840 SdHoareTripleChecker+Valid, 13894 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:36,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3840 Valid, 13894 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:52:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17219 states. [2022-07-12 15:52:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17219 to 13093. [2022-07-12 15:52:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13093 states, 8808 states have (on average 1.2923478655767484) internal successors, (11383), 9124 states have internal predecessors, (11383), 3263 states have call successors, (3263), 1050 states have call predecessors, (3263), 1020 states have return successors, (3369), 3163 states have call predecessors, (3369), 3261 states have call successors, (3369) [2022-07-12 15:52:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13093 states to 13093 states and 18015 transitions. [2022-07-12 15:52:37,104 INFO L78 Accepts]: Start accepts. Automaton has 13093 states and 18015 transitions. Word has length 120 [2022-07-12 15:52:37,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:37,104 INFO L495 AbstractCegarLoop]: Abstraction has 13093 states and 18015 transitions. [2022-07-12 15:52:37,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:52:37,105 INFO L276 IsEmpty]: Start isEmpty. Operand 13093 states and 18015 transitions. [2022-07-12 15:52:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-12 15:52:37,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:37,112 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:52:37,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 15:52:37,112 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:52:37,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:37,113 INFO L85 PathProgramCache]: Analyzing trace with hash -347140142, now seen corresponding path program 1 times [2022-07-12 15:52:37,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:37,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599644114] [2022-07-12 15:52:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:37,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 15:52:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:52:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:52:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 15:52:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:52:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:37,843 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-12 15:52:37,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:37,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599644114] [2022-07-12 15:52:37,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599644114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:37,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:37,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:52:37,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92580889] [2022-07-12 15:52:37,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:37,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:52:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:37,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:52:37,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:52:37,846 INFO L87 Difference]: Start difference. First operand 13093 states and 18015 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:52:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:43,650 INFO L93 Difference]: Finished difference Result 13402 states and 18502 transitions. [2022-07-12 15:52:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 15:52:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2022-07-12 15:52:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:43,709 INFO L225 Difference]: With dead ends: 13402 [2022-07-12 15:52:43,710 INFO L226 Difference]: Without dead ends: 13400 [2022-07-12 15:52:43,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 15:52:43,722 INFO L413 NwaCegarLoop]: 4015 mSDtfsCounter, 3965 mSDsluCounter, 8024 mSDsCounter, 0 mSdLazyCounter, 4373 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 12039 SdHoareTripleChecker+Invalid, 5871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 4373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:43,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4341 Valid, 12039 Invalid, 5871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1498 Valid, 4373 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 15:52:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13400 states. [2022-07-12 15:52:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13400 to 13192. [2022-07-12 15:52:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13192 states, 8868 states have (on average 1.2903698691926027) internal successors, (11443), 9190 states have internal predecessors, (11443), 3275 states have call successors, (3275), 1056 states have call predecessors, (3275), 1047 states have return successors, (3414), 3184 states have call predecessors, (3414), 3273 states have call successors, (3414) [2022-07-12 15:52:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13192 states to 13192 states and 18132 transitions. [2022-07-12 15:52:44,549 INFO L78 Accepts]: Start accepts. Automaton has 13192 states and 18132 transitions. Word has length 155 [2022-07-12 15:52:44,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:44,549 INFO L495 AbstractCegarLoop]: Abstraction has 13192 states and 18132 transitions. [2022-07-12 15:52:44,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:52:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 13192 states and 18132 transitions. [2022-07-12 15:52:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-12 15:52:44,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:44,560 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:52:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 15:52:44,560 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:52:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1631419656, now seen corresponding path program 1 times [2022-07-12 15:52:44,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:44,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179497956] [2022-07-12 15:52:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:44,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:52:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 15:52:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:52:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:44,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:52:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:52:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 15:52:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 15:52:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:52:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:52:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:52:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:52:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:52:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 15:52:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:52:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 15:52:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-07-12 15:52:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:45,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179497956] [2022-07-12 15:52:45,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179497956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:45,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:45,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:52:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143464119] [2022-07-12 15:52:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:45,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:52:45,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:45,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:52:45,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:52:45,103 INFO L87 Difference]: Start difference. First operand 13192 states and 18132 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:52:51,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:52:51,606 INFO L93 Difference]: Finished difference Result 13414 states and 18502 transitions. [2022-07-12 15:52:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 15:52:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 192 [2022-07-12 15:52:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:52:51,662 INFO L225 Difference]: With dead ends: 13414 [2022-07-12 15:52:51,662 INFO L226 Difference]: Without dead ends: 13412 [2022-07-12 15:52:51,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 15:52:51,672 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 4058 mSDsluCounter, 10059 mSDsCounter, 0 mSdLazyCounter, 5827 mSolverCounterSat, 1570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4584 SdHoareTripleChecker+Valid, 14788 SdHoareTripleChecker+Invalid, 7397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 5827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:52:51,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4584 Valid, 14788 Invalid, 7397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1570 Valid, 5827 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 15:52:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13412 states. [2022-07-12 15:52:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13412 to 13204. [2022-07-12 15:52:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13204 states, 8877 states have (on average 1.290075475949082) internal successors, (11452), 9199 states have internal predecessors, (11452), 3275 states have call successors, (3275), 1059 states have call predecessors, (3275), 1050 states have return successors, (3414), 3184 states have call predecessors, (3414), 3273 states have call successors, (3414) [2022-07-12 15:52:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13204 states to 13204 states and 18141 transitions. [2022-07-12 15:52:52,406 INFO L78 Accepts]: Start accepts. Automaton has 13204 states and 18141 transitions. Word has length 192 [2022-07-12 15:52:52,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:52:52,407 INFO L495 AbstractCegarLoop]: Abstraction has 13204 states and 18141 transitions. [2022-07-12 15:52:52,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:52:52,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13204 states and 18141 transitions. [2022-07-12 15:52:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 15:52:52,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:52:52,417 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:52:52,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 15:52:52,418 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:52:52,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:52:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash -307615317, now seen corresponding path program 1 times [2022-07-12 15:52:52,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:52:52,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253104778] [2022-07-12 15:52:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:52:52,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:52:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:52:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:52:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:52:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:52:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:52:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:52:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:52:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:52:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 15:52:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:52:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:52:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:52:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:52:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:52:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:52:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 15:52:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 15:52:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:52:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:52:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:52:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-12 15:52:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:52:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 15:52:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:52:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-12 15:52:52,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:52:52,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253104778] [2022-07-12 15:52:52,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253104778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:52:52,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:52:52,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 15:52:52,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559480332] [2022-07-12 15:52:52,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:52:52,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 15:52:52,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:52:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 15:52:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:52:52,902 INFO L87 Difference]: Start difference. First operand 13204 states and 18141 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:52:55,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:53:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:53:09,491 INFO L93 Difference]: Finished difference Result 17706 states and 25970 transitions. [2022-07-12 15:53:09,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 15:53:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 189 [2022-07-12 15:53:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:53:09,599 INFO L225 Difference]: With dead ends: 17706 [2022-07-12 15:53:09,599 INFO L226 Difference]: Without dead ends: 17658 [2022-07-12 15:53:09,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-07-12 15:53:09,623 INFO L413 NwaCegarLoop]: 4180 mSDtfsCounter, 4428 mSDsluCounter, 12537 mSDsCounter, 0 mSdLazyCounter, 11474 mSolverCounterSat, 4370 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 16717 SdHoareTripleChecker+Invalid, 15845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4370 IncrementalHoareTripleChecker+Valid, 11474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-12 15:53:09,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4679 Valid, 16717 Invalid, 15845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4370 Valid, 11474 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-07-12 15:53:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17658 states. [2022-07-12 15:53:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17658 to 9327. [2022-07-12 15:53:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9327 states, 6307 states have (on average 1.29221499920723) internal successors, (8150), 6540 states have internal predecessors, (8150), 2266 states have call successors, (2266), 714 states have call predecessors, (2266), 752 states have return successors, (2515), 2243 states have call predecessors, (2515), 2266 states have call successors, (2515) [2022-07-12 15:53:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9327 states to 9327 states and 12931 transitions. [2022-07-12 15:53:10,427 INFO L78 Accepts]: Start accepts. Automaton has 9327 states and 12931 transitions. Word has length 189 [2022-07-12 15:53:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:53:10,428 INFO L495 AbstractCegarLoop]: Abstraction has 9327 states and 12931 transitions. [2022-07-12 15:53:10,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:53:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 9327 states and 12931 transitions. [2022-07-12 15:53:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-12 15:53:10,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:53:10,439 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:53:10,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 15:53:10,440 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-07-12 15:53:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:53:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1157846813, now seen corresponding path program 1 times [2022-07-12 15:53:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:53:10,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454447805] [2022-07-12 15:53:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:53:10,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:53:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:53:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:53:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:53:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 15:53:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:53:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:53:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:53:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 15:53:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 15:53:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:53:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:53:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:53:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:53:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:53:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 15:53:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:53:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 15:53:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 15:53:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 15:53:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-07-12 15:53:10,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:53:10,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454447805] [2022-07-12 15:53:10,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454447805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:53:10,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:53:10,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 15:53:10,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721720322] [2022-07-12 15:53:10,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:53:10,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 15:53:10,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:53:10,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 15:53:10,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:53:10,930 INFO L87 Difference]: Start difference. First operand 9327 states and 12931 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-12 15:53:21,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:53:21,427 INFO L93 Difference]: Finished difference Result 10021 states and 14014 transitions. [2022-07-12 15:53:21,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 15:53:21,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 222 [2022-07-12 15:53:21,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:53:21,467 INFO L225 Difference]: With dead ends: 10021 [2022-07-12 15:53:21,467 INFO L226 Difference]: Without dead ends: 10019 [2022-07-12 15:53:21,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-07-12 15:53:21,476 INFO L413 NwaCegarLoop]: 4305 mSDtfsCounter, 4972 mSDsluCounter, 7668 mSDsCounter, 0 mSdLazyCounter, 11763 mSolverCounterSat, 3565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5346 SdHoareTripleChecker+Valid, 11973 SdHoareTripleChecker+Invalid, 15328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3565 IncrementalHoareTripleChecker+Valid, 11763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:53:21,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5346 Valid, 11973 Invalid, 15328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3565 Valid, 11763 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-07-12 15:53:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2022-07-12 15:53:21,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 9205. [2022-07-12 15:53:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9205 states, 6209 states have (on average 1.2890964728619745) internal successors, (8004), 6430 states have internal predecessors, (8004), 2248 states have call successors, (2248), 716 states have call predecessors, (2248), 746 states have return successors, (2402), 2227 states have call predecessors, (2402), 2248 states have call successors, (2402) [2022-07-12 15:53:22,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9205 states to 9205 states and 12654 transitions. [2022-07-12 15:53:22,118 INFO L78 Accepts]: Start accepts. Automaton has 9205 states and 12654 transitions. Word has length 222 [2022-07-12 15:53:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:53:22,120 INFO L495 AbstractCegarLoop]: Abstraction has 9205 states and 12654 transitions. [2022-07-12 15:53:22,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-12 15:53:22,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9205 states and 12654 transitions. [2022-07-12 15:53:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-07-12 15:53:22,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:53:22,138 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:53:22,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 15:53:22,138 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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)] === [2022-07-12 15:53:22,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:53:22,141 INFO L85 PathProgramCache]: Analyzing trace with hash -931136, now seen corresponding path program 1 times [2022-07-12 15:53:22,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:53:22,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825183700] [2022-07-12 15:53:22,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:53:22,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:53:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:53:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:53:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:53:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:53:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:53:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:53:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:53:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:53:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 15:53:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:53:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:53:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 15:53:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:53:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 15:53:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 15:53:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 15:53:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 15:53:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 15:53:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 15:53:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 15:53:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 15:53:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 15:53:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 15:53:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 15:53:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-07-12 15:53:22,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:53:22,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825183700] [2022-07-12 15:53:22,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825183700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:53:22,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:53:22,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 15:53:22,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865870773] [2022-07-12 15:53:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:53:22,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 15:53:22,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:53:22,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 15:53:22,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 15:53:22,992 INFO L87 Difference]: Start difference. First operand 9205 states and 12654 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (39), 2 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-12 15:53:25,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:53:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:53:39,400 INFO L93 Difference]: Finished difference Result 12166 states and 17849 transitions. [2022-07-12 15:53:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 15:53:39,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (39), 2 states have call predecessors, (39), 3 states have call successors, (39) Word has length 299 [2022-07-12 15:53:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:53:39,458 INFO L225 Difference]: With dead ends: 12166 [2022-07-12 15:53:39,458 INFO L226 Difference]: Without dead ends: 12164 [2022-07-12 15:53:39,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-07-12 15:53:39,471 INFO L413 NwaCegarLoop]: 3680 mSDtfsCounter, 7489 mSDsluCounter, 9943 mSDsCounter, 0 mSdLazyCounter, 9126 mSolverCounterSat, 5262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7862 SdHoareTripleChecker+Valid, 13623 SdHoareTripleChecker+Invalid, 14389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5262 IncrementalHoareTripleChecker+Valid, 9126 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:53:39,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7862 Valid, 13623 Invalid, 14389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5262 Valid, 9126 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2022-07-12 15:53:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12164 states. [2022-07-12 15:53:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12164 to 9213. [2022-07-12 15:53:40,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9213 states, 6215 states have (on average 1.288495575221239) internal successors, (8008), 6436 states have internal predecessors, (8008), 2248 states have call successors, (2248), 718 states have call predecessors, (2248), 748 states have return successors, (2402), 2227 states have call predecessors, (2402), 2248 states have call successors, (2402) [2022-07-12 15:53:40,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9213 states to 9213 states and 12658 transitions. [2022-07-12 15:53:40,113 INFO L78 Accepts]: Start accepts. Automaton has 9213 states and 12658 transitions. Word has length 299 [2022-07-12 15:53:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:53:40,113 INFO L495 AbstractCegarLoop]: Abstraction has 9213 states and 12658 transitions. [2022-07-12 15:53:40,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (39), 2 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-12 15:53:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 9213 states and 12658 transitions. [2022-07-12 15:53:40,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-07-12 15:53:40,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:53:40,129 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:53:40,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 15:53:40,129 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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)] === [2022-07-12 15:53:40,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:53:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1762254654, now seen corresponding path program 1 times [2022-07-12 15:53:40,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:53:40,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512112300] [2022-07-12 15:53:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:53:40,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:53:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:53:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:53:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 15:53:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 15:53:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 15:53:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 15:53:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 15:53:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 15:53:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 15:53:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:53:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:53:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:53:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:53:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 15:53:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 15:53:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 15:53:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 15:53:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 15:53:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 15:53:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 15:53:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-12 15:53:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 15:53:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 15:53:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 15:53:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 15:53:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:53:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:53:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:53:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-12 15:53:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 15:53:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:53:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:53:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:53:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-12 15:53:40,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:53:40,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512112300] [2022-07-12 15:53:40,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512112300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:53:40,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:53:40,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 15:53:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562687417] [2022-07-12 15:53:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:53:40,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 15:53:40,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:53:40,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 15:53:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:53:40,663 INFO L87 Difference]: Start difference. First operand 9213 states and 12658 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 7 states have call predecessors, (48), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-12 15:53:42,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:54:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:54:00,956 INFO L93 Difference]: Finished difference Result 22813 states and 33093 transitions. [2022-07-12 15:54:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 15:54:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 7 states have call predecessors, (48), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 323 [2022-07-12 15:54:00,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:54:01,012 INFO L225 Difference]: With dead ends: 22813 [2022-07-12 15:54:01,012 INFO L226 Difference]: Without dead ends: 13619 [2022-07-12 15:54:01,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2022-07-12 15:54:01,063 INFO L413 NwaCegarLoop]: 3642 mSDtfsCounter, 5728 mSDsluCounter, 7891 mSDsCounter, 0 mSdLazyCounter, 11014 mSolverCounterSat, 4890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6042 SdHoareTripleChecker+Valid, 11533 SdHoareTripleChecker+Invalid, 15904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4890 IncrementalHoareTripleChecker+Valid, 11014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:54:01,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6042 Valid, 11533 Invalid, 15904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4890 Valid, 11014 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2022-07-12 15:54:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13619 states. [2022-07-12 15:54:01,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13619 to 9217. [2022-07-12 15:54:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9217 states, 6219 states have (on average 1.2883100176877311) internal successors, (8012), 6440 states have internal predecessors, (8012), 2248 states have call successors, (2248), 718 states have call predecessors, (2248), 748 states have return successors, (2402), 2227 states have call predecessors, (2402), 2248 states have call successors, (2402) [2022-07-12 15:54:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9217 states to 9217 states and 12662 transitions. [2022-07-12 15:54:01,692 INFO L78 Accepts]: Start accepts. Automaton has 9217 states and 12662 transitions. Word has length 323 [2022-07-12 15:54:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:54:01,693 INFO L495 AbstractCegarLoop]: Abstraction has 9217 states and 12662 transitions. [2022-07-12 15:54:01,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 7 states have call predecessors, (48), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-12 15:54:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9217 states and 12662 transitions. [2022-07-12 15:54:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-12 15:54:01,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:54:01,708 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:54:01,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 15:54:01,708 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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)] === [2022-07-12 15:54:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:54:01,709 INFO L85 PathProgramCache]: Analyzing trace with hash -730745239, now seen corresponding path program 1 times [2022-07-12 15:54:01,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:54:01,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811575243] [2022-07-12 15:54:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:54:01,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:54:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:54:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:54:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:54:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 15:54:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:54:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:54:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:54:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 15:54:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 15:54:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:54:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:54:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:54:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:54:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:54:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 15:54:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:54:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 15:54:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 15:54:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:54:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:54:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:54:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:54:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 15:54:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 15:54:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 15:54:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 15:54:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-12 15:54:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:54:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-12 15:54:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 15:54:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 15:54:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-12 15:54:02,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:54:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811575243] [2022-07-12 15:54:02,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811575243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:54:02,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:54:02,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 15:54:02,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142732066] [2022-07-12 15:54:02,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:54:02,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 15:54:02,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:54:02,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 15:54:02,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:54:02,292 INFO L87 Difference]: Start difference. First operand 9217 states and 12662 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 5 states have call successors, (51), 5 states have call predecessors, (51), 1 states have return successors, (39), 4 states have call predecessors, (39), 5 states have call successors, (39) [2022-07-12 15:54:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:54:10,422 INFO L93 Difference]: Finished difference Result 19355 states and 26842 transitions. [2022-07-12 15:54:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 15:54:10,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 5 states have call successors, (51), 5 states have call predecessors, (51), 1 states have return successors, (39), 4 states have call predecessors, (39), 5 states have call successors, (39) Word has length 311 [2022-07-12 15:54:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:54:10,463 INFO L225 Difference]: With dead ends: 19355 [2022-07-12 15:54:10,463 INFO L226 Difference]: Without dead ends: 10157 [2022-07-12 15:54:10,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-07-12 15:54:10,496 INFO L413 NwaCegarLoop]: 3621 mSDtfsCounter, 6356 mSDsluCounter, 6022 mSDsCounter, 0 mSdLazyCounter, 6753 mSolverCounterSat, 3704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6605 SdHoareTripleChecker+Valid, 9643 SdHoareTripleChecker+Invalid, 10457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3704 IncrementalHoareTripleChecker+Valid, 6753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:54:10,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6605 Valid, 9643 Invalid, 10457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3704 Valid, 6753 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-07-12 15:54:10,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2022-07-12 15:54:11,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 9399. [2022-07-12 15:54:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9399 states, 6357 states have (on average 1.2924335378323109) internal successors, (8216), 6588 states have internal predecessors, (8216), 2292 states have call successors, (2292), 718 states have call predecessors, (2292), 748 states have return successors, (2452), 2273 states have call predecessors, (2452), 2292 states have call successors, (2452) [2022-07-12 15:54:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9399 states to 9399 states and 12960 transitions. [2022-07-12 15:54:11,072 INFO L78 Accepts]: Start accepts. Automaton has 9399 states and 12960 transitions. Word has length 311 [2022-07-12 15:54:11,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:54:11,072 INFO L495 AbstractCegarLoop]: Abstraction has 9399 states and 12960 transitions. [2022-07-12 15:54:11,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 5 states have call successors, (51), 5 states have call predecessors, (51), 1 states have return successors, (39), 4 states have call predecessors, (39), 5 states have call successors, (39) [2022-07-12 15:54:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9399 states and 12960 transitions. [2022-07-12 15:54:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-07-12 15:54:11,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:54:11,087 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:54:11,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 15:54:11,087 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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)] === [2022-07-12 15:54:11,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:54:11,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1585069961, now seen corresponding path program 1 times [2022-07-12 15:54:11,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:54:11,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662532399] [2022-07-12 15:54:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:54:11,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:54:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:54:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:54:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:54:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 15:54:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:54:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:54:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:54:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 15:54:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 15:54:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:54:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:54:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:54:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:54:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:54:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 15:54:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:54:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 15:54:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 15:54:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:54:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:54:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:54:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:54:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 15:54:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 15:54:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 15:54:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-12 15:54:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 15:54:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 15:54:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 15:54:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 15:54:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 15:54:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 15:54:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 15:54:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2022-07-12 15:54:11,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:54:11,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662532399] [2022-07-12 15:54:11,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662532399] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 15:54:11,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091908254] [2022-07-12 15:54:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:54:11,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 15:54:11,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:54:11,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 15:54:11,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 15:54:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:13,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 6894 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 15:54:13,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:54:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 186 proven. 42 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-07-12 15:54:13,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:54:13,826 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2022-07-12 15:54:13,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091908254] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 15:54:13,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 15:54:13,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2022-07-12 15:54:13,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743539360] [2022-07-12 15:54:13,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 15:54:13,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 15:54:13,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:54:13,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 15:54:13,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-07-12 15:54:13,829 INFO L87 Difference]: Start difference. First operand 9399 states and 12960 transitions. Second operand has 14 states, 14 states have (on average 22.428571428571427) internal successors, (314), 12 states have internal predecessors, (314), 11 states have call successors, (120), 7 states have call predecessors, (120), 3 states have return successors, (100), 10 states have call predecessors, (100), 11 states have call successors, (100) [2022-07-12 15:54:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:54:21,773 INFO L93 Difference]: Finished difference Result 20369 states and 28530 transitions. [2022-07-12 15:54:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 15:54:21,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 22.428571428571427) internal successors, (314), 12 states have internal predecessors, (314), 11 states have call successors, (120), 7 states have call predecessors, (120), 3 states have return successors, (100), 10 states have call predecessors, (100), 11 states have call successors, (100) Word has length 329 [2022-07-12 15:54:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:54:21,834 INFO L225 Difference]: With dead ends: 20369 [2022-07-12 15:54:21,834 INFO L226 Difference]: Without dead ends: 10989 [2022-07-12 15:54:21,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-07-12 15:54:21,865 INFO L413 NwaCegarLoop]: 3605 mSDtfsCounter, 10729 mSDsluCounter, 4447 mSDsCounter, 0 mSdLazyCounter, 4802 mSolverCounterSat, 6071 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10962 SdHoareTripleChecker+Valid, 8052 SdHoareTripleChecker+Invalid, 10873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6071 IncrementalHoareTripleChecker+Valid, 4802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:54:21,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10962 Valid, 8052 Invalid, 10873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6071 Valid, 4802 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-07-12 15:54:21,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2022-07-12 15:54:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 10343. [2022-07-12 15:54:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10343 states, 7045 states have (on average 1.311568488289567) internal successors, (9240), 7324 states have internal predecessors, (9240), 2548 states have call successors, (2548), 718 states have call predecessors, (2548), 748 states have return successors, (2748), 2529 states have call predecessors, (2748), 2548 states have call successors, (2748) [2022-07-12 15:54:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10343 states to 10343 states and 14536 transitions. [2022-07-12 15:54:22,527 INFO L78 Accepts]: Start accepts. Automaton has 10343 states and 14536 transitions. Word has length 329 [2022-07-12 15:54:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:54:22,527 INFO L495 AbstractCegarLoop]: Abstraction has 10343 states and 14536 transitions. [2022-07-12 15:54:22,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 22.428571428571427) internal successors, (314), 12 states have internal predecessors, (314), 11 states have call successors, (120), 7 states have call predecessors, (120), 3 states have return successors, (100), 10 states have call predecessors, (100), 11 states have call successors, (100) [2022-07-12 15:54:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 10343 states and 14536 transitions. [2022-07-12 15:54:22,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-07-12 15:54:22,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:54:22,546 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:54:22,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 15:54:22,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-12 15:54:22,747 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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)] === [2022-07-12 15:54:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:54:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1856201728, now seen corresponding path program 1 times [2022-07-12 15:54:22,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:54:22,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592777239] [2022-07-12 15:54:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:54:22,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:54:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:54:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:54:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:54:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 15:54:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:54:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:54:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:54:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 15:54:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 15:54:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:54:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:54:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:54:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:54:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:54:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 15:54:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:54:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 15:54:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 15:54:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:54:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:54:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:54:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 15:54:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 15:54:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:54:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:54:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:54:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-12 15:54:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 15:54:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-12 15:54:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-12 15:54:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 15:54:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-12 15:54:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 15:54:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 15:54:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 15:54:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 15:54:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-07-12 15:54:23,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:54:23,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592777239] [2022-07-12 15:54:23,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592777239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:54:23,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:54:23,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 15:54:23,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409678548] [2022-07-12 15:54:23,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:54:23,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 15:54:23,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:54:23,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 15:54:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 15:54:23,304 INFO L87 Difference]: Start difference. First operand 10343 states and 14536 transitions. Second operand has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 5 states have internal predecessors, (138), 6 states have call successors, (57), 7 states have call predecessors, (57), 1 states have return successors, (45), 4 states have call predecessors, (45), 6 states have call successors, (45) [2022-07-12 15:54:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:54:39,709 INFO L93 Difference]: Finished difference Result 25428 states and 37449 transitions. [2022-07-12 15:54:39,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 15:54:39,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 5 states have internal predecessors, (138), 6 states have call successors, (57), 7 states have call predecessors, (57), 1 states have return successors, (45), 4 states have call predecessors, (45), 6 states have call successors, (45) Word has length 339 [2022-07-12 15:54:39,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:54:39,770 INFO L225 Difference]: With dead ends: 25428 [2022-07-12 15:54:39,771 INFO L226 Difference]: Without dead ends: 15104 [2022-07-12 15:54:39,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-07-12 15:54:39,813 INFO L413 NwaCegarLoop]: 3574 mSDtfsCounter, 10470 mSDsluCounter, 8327 mSDsCounter, 0 mSdLazyCounter, 11741 mSolverCounterSat, 8174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10769 SdHoareTripleChecker+Valid, 11901 SdHoareTripleChecker+Invalid, 19915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8174 IncrementalHoareTripleChecker+Valid, 11741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:54:39,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10769 Valid, 11901 Invalid, 19915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8174 Valid, 11741 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-07-12 15:54:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15104 states. [2022-07-12 15:54:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15104 to 10433. [2022-07-12 15:54:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10433 states, 7099 states have (on average 1.313142696154388) internal successors, (9322), 7384 states have internal predecessors, (9322), 2584 states have call successors, (2584), 718 states have call predecessors, (2584), 748 states have return successors, (2784), 2563 states have call predecessors, (2784), 2584 states have call successors, (2784) [2022-07-12 15:54:40,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10433 states to 10433 states and 14690 transitions. [2022-07-12 15:54:40,497 INFO L78 Accepts]: Start accepts. Automaton has 10433 states and 14690 transitions. Word has length 339 [2022-07-12 15:54:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:54:40,498 INFO L495 AbstractCegarLoop]: Abstraction has 10433 states and 14690 transitions. [2022-07-12 15:54:40,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 5 states have internal predecessors, (138), 6 states have call successors, (57), 7 states have call predecessors, (57), 1 states have return successors, (45), 4 states have call predecessors, (45), 6 states have call successors, (45) [2022-07-12 15:54:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 10433 states and 14690 transitions. [2022-07-12 15:54:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-07-12 15:54:40,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:54:40,510 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:54:40,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 15:54:40,511 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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)] === [2022-07-12 15:54:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:54:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash 370671256, now seen corresponding path program 1 times [2022-07-12 15:54:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:54:40,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215608504] [2022-07-12 15:54:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:54:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:54:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 15:54:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 15:54:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 15:54:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 15:54:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 15:54:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:54:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 15:54:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 15:54:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 15:54:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:54:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:54:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 15:54:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 15:54:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 15:54:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 15:54:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:54:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 15:54:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 15:54:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 15:54:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 15:54:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 15:54:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 15:54:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:54:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 15:54:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 15:54:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 15:54:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-12 15:54:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 15:54:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 15:54:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:54:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:54:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:54:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 15:54:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 15:54:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:54:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2022-07-12 15:54:43,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:54:43,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215608504] [2022-07-12 15:54:43,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215608504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:54:43,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:54:43,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 15:54:43,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579830110] [2022-07-12 15:54:43,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:54:43,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 15:54:43,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:54:43,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 15:54:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-12 15:54:43,808 INFO L87 Difference]: Start difference. First operand 10433 states and 14690 transitions. Second operand has 13 states, 13 states have (on average 11.76923076923077) internal successors, (153), 10 states have internal predecessors, (153), 5 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (41), 4 states have call predecessors, (41), 5 states have call successors, (41) [2022-07-12 15:54:46,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:54:49,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:54:51,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []