./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-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:42:51,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:42:51,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:42:51,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:42:51,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:42:51,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:42:51,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:42:51,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:42:51,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:42:51,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:42:51,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:42:51,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:42:51,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:42:51,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:42:51,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:42:51,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:42:51,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:42:51,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:42:51,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:42:51,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:42:51,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:42:51,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:42:51,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:42:51,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:42:51,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:42:51,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:42:51,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:42:51,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:42:51,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:42:51,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:42:51,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:42:51,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:42:51,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:42:51,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:42:51,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:42:51,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:42:51,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:42:51,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:42:51,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:42:51,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:42:51,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:42:51,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:42:51,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:42:51,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:42:51,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:42:51,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:42:51,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:42:51,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:42:51,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:42:51,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:42:51,389 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:42:51,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:42:51,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:42:51,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:42:51,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:42:51,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:42:51,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:42:51,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:42:51,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:42:51,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:42:51,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:42:51,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:42:51,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:42:51,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:42:51,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:42:51,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:42:51,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:42:51,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:42:51,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:42:51,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:42:51,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:42:51,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:42:51,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:42:51,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2021-12-22 15:42:51,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:42:51,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:42:51,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:42:51,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:42:51,651 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:42:51,653 INFO L432 ainManager$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-irda-via-ircc.cil.i [2021-12-22 15:42:51,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2781ef366/4939faed3bd94ed983db86ad29ffa0dd/FLAG633d8ba2c [2021-12-22 15:42:52,394 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:42:52,395 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-irda-via-ircc.cil.i [2021-12-22 15:42:52,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2781ef366/4939faed3bd94ed983db86ad29ffa0dd/FLAG633d8ba2c [2021-12-22 15:42:52,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2781ef366/4939faed3bd94ed983db86ad29ffa0dd [2021-12-22 15:42:52,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:42:52,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:42:52,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:42:52,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:42:52,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:42:52,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:52,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b063b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:52, skipping insertion in model container [2021-12-22 15:42:52,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:42:52" (1/1) ... [2021-12-22 15:42:52,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:42:52,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:42:54,578 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-irda-via-ircc.cil.i[324559,324572] [2021-12-22 15:42:54,580 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-irda-via-ircc.cil.i[324728,324741] [2021-12-22 15:42:54,580 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-irda-via-ircc.cil.i[324895,324908] [2021-12-22 15:42:54,581 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-irda-via-ircc.cil.i[325063,325076] [2021-12-22 15:42:54,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:42:54,622 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:42:54,898 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-irda-via-ircc.cil.i[324559,324572] [2021-12-22 15:42:54,899 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-irda-via-ircc.cil.i[324728,324741] [2021-12-22 15:42:54,899 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-irda-via-ircc.cil.i[324895,324908] [2021-12-22 15:42:54,899 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-irda-via-ircc.cil.i[325063,325076] [2021-12-22 15:42:54,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:42:55,000 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:42:55,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55 WrapperNode [2021-12-22 15:42:55,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:42:55,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:42:55,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:42:55,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:42:55,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,233 INFO L137 Inliner]: procedures = 386, calls = 2027, calls flagged for inlining = 151, calls inlined = 130, statements flattened = 4118 [2021-12-22 15:42:55,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:42:55,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:42:55,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:42:55,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:42:55,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:42:55,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:42:55,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:42:55,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:42:55,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (1/1) ... [2021-12-22 15:42:55,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:42:55,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:42:55,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:42:55,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:42:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:42:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:42:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-12-22 15:42:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-12-22 15:42:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-12-22 15:42:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-12-22 15:42:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:42:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:42:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:42:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:42:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2021-12-22 15:42:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2021-12-22 15:42:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:42:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:42:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-12-22 15:42:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-12-22 15:42:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:42:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-22 15:42:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-12-22 15:42:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-12-22 15:42:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-12-22 15:42:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-12-22 15:42:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-22 15:42:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-22 15:42:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:42:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:42:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-12-22 15:42:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-12-22 15:42:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-12-22 15:42:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-12-22 15:42:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-22 15:42:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-22 15:42:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:42:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:42:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:42:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-12-22 15:42:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-12-22 15:42:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-12-22 15:42:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-12-22 15:42:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-22 15:42:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-22 15:42:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-12-22 15:42:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-12-22 15:42:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:42:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:42:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-12-22 15:42:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-12-22 15:42:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-12-22 15:42:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-12-22 15:42:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:42:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-12-22 15:42:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-12-22 15:42:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-12-22 15:42:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-12-22 15:42:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-12-22 15:42:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-12-22 15:42:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:42:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:42:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:42:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:42:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:42:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-12-22 15:42:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-12-22 15:42:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:42:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:42:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:42:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-12-22 15:42:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-12-22 15:42:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:42:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:42:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:42:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:42:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-12-22 15:42:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-12-22 15:42:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-12-22 15:42:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-12-22 15:42:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-12-22 15:42:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-12-22 15:42:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:42:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-22 15:42:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-12-22 15:42:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-12-22 15:42:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:42:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-12-22 15:42:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-12-22 15:42:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:42:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:42:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:42:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:42:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:42:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:42:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:42:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-12-22 15:42:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-12-22 15:42:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:42:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:42:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:42:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:42:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-12-22 15:42:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-12-22 15:42:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-12-22 15:42:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-12-22 15:42:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:42:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:42:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:42:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:42:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-12-22 15:42:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-12-22 15:42:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:42:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:42:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-12-22 15:42:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-12-22 15:42:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:42:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:42:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:42:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:42:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-12-22 15:42:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-12-22 15:42:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:42:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-22 15:42:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-22 15:42:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-22 15:42:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-12-22 15:42:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-12-22 15:42:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-12-22 15:42:55,508 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-12-22 15:42:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:42:55,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:42:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-12-22 15:42:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-12-22 15:42:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-12-22 15:42:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-12-22 15:42:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:42:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:42:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:42:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:42:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-12-22 15:42:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-12-22 15:42:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:42:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:42:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-22 15:42:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-22 15:42:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-22 15:42:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:42:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:42:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 15:42:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 15:42:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:42:55,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:42:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:42:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:42:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-12-22 15:42:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-12-22 15:42:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:42:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:42:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 15:42:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 15:42:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:42:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:42:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:42:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:42:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:42:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:42:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:42:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-22 15:42:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-22 15:42:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-12-22 15:42:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-12-22 15:42:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-22 15:42:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-22 15:42:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:42:55,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:42:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-12-22 15:42:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-12-22 15:42:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-12-22 15:42:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-12-22 15:42:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-12-22 15:42:55,515 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-12-22 15:42:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:42:55,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:42:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-12-22 15:42:55,516 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-12-22 15:42:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-12-22 15:42:55,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-12-22 15:42:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-12-22 15:42:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-12-22 15:42:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:42:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:42:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:42:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-22 15:42:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-22 15:42:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:42:55,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:42:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-22 15:42:55,518 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-22 15:42:56,177 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:42:56,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:42:56,327 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:42:59,765 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:42:59,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:42:59,777 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:42:59,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:42:59 BoogieIcfgContainer [2021-12-22 15:42:59,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:42:59,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:42:59,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:42:59,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:42:59,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:42:52" (1/3) ... [2021-12-22 15:42:59,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5db77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:42:59, skipping insertion in model container [2021-12-22 15:42:59,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:55" (2/3) ... [2021-12-22 15:42:59,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5db77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:42:59, skipping insertion in model container [2021-12-22 15:42:59,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:42:59" (3/3) ... [2021-12-22 15:42:59,785 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-12-22 15:42:59,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:42:59,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:42:59,828 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:42:59,833 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:42:59,833 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:42:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 1819 states, 1090 states have (on average 1.255045871559633) internal successors, (1368), 1123 states have internal predecessors, (1368), 635 states have call successors, (635), 91 states have call predecessors, (635), 90 states have return successors, (632), 620 states have call predecessors, (632), 632 states have call successors, (632) [2021-12-22 15:42:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-22 15:42:59,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:42:59,874 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:42:59,874 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:42:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:42:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1380008991, now seen corresponding path program 1 times [2021-12-22 15:42:59,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:42:59,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14783406] [2021-12-22 15:42:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:42:59,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:43:00,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:00,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14783406] [2021-12-22 15:43:00,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14783406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:00,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:00,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:00,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571870608] [2021-12-22 15:43:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:00,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:00,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:00,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:00,382 INFO L87 Difference]: Start difference. First operand has 1819 states, 1090 states have (on average 1.255045871559633) internal successors, (1368), 1123 states have internal predecessors, (1368), 635 states have call successors, (635), 91 states have call predecessors, (635), 90 states have return successors, (632), 620 states have call predecessors, (632), 632 states have call successors, (632) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:43:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:00,642 INFO L93 Difference]: Finished difference Result 3611 states and 5273 transitions. [2021-12-22 15:43:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:00,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (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 51 [2021-12-22 15:43:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:00,669 INFO L225 Difference]: With dead ends: 3611 [2021-12-22 15:43:00,669 INFO L226 Difference]: Without dead ends: 1811 [2021-12-22 15:43:00,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:00,684 INFO L933 BasicCegarLoop]: 2624 mSDtfsCounter, 2598 mSDsluCounter, 5233 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 7857 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:00,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2612 Valid, 7857 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:00,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-12-22 15:43:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2021-12-22 15:43:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1086 states have (on average 1.2504604051565378) internal successors, (1358), 1119 states have internal predecessors, (1358), 632 states have call successors, (632), 91 states have call predecessors, (632), 90 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2021-12-22 15:43:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2619 transitions. [2021-12-22 15:43:00,840 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2619 transitions. Word has length 51 [2021-12-22 15:43:00,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:00,841 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2619 transitions. [2021-12-22 15:43:00,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:43:00,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2619 transitions. [2021-12-22 15:43:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-22 15:43:00,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:00,844 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:00,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:43:00,844 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:00,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1587270242, now seen corresponding path program 1 times [2021-12-22 15:43:00,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:00,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157645297] [2021-12-22 15:43:00,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:00,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:43:01,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:01,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157645297] [2021-12-22 15:43:01,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157645297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:01,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:01,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:01,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602695745] [2021-12-22 15:43:01,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:01,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:01,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:01,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:01,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:01,021 INFO L87 Difference]: Start difference. First operand 1811 states and 2619 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:43:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:01,116 INFO L93 Difference]: Finished difference Result 1817 states and 2624 transitions. [2021-12-22 15:43:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:01,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 56 [2021-12-22 15:43:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:01,157 INFO L225 Difference]: With dead ends: 1817 [2021-12-22 15:43:01,157 INFO L226 Difference]: Without dead ends: 1815 [2021-12-22 15:43:01,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:01,159 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:01,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2595 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2021-12-22 15:43:01,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2021-12-22 15:43:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1089 states have (on average 1.2497704315886133) internal successors, (1361), 1122 states have internal predecessors, (1361), 632 states have call successors, (632), 92 states have call predecessors, (632), 91 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2021-12-22 15:43:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2622 transitions. [2021-12-22 15:43:01,232 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2622 transitions. Word has length 56 [2021-12-22 15:43:01,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:01,232 INFO L470 AbstractCegarLoop]: Abstraction has 1815 states and 2622 transitions. [2021-12-22 15:43:01,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:43:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2622 transitions. [2021-12-22 15:43:01,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-22 15:43:01,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:01,235 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:01,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:43:01,235 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:01,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:01,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1126064577, now seen corresponding path program 1 times [2021-12-22 15:43:01,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:01,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014874504] [2021-12-22 15:43:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:01,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 15:43:01,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:01,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014874504] [2021-12-22 15:43:01,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014874504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:01,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:01,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:01,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462853498] [2021-12-22 15:43:01,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:01,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:01,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:01,395 INFO L87 Difference]: Start difference. First operand 1815 states and 2622 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:43:01,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:01,488 INFO L93 Difference]: Finished difference Result 1821 states and 2627 transitions. [2021-12-22 15:43:01,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:01,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 61 [2021-12-22 15:43:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:01,498 INFO L225 Difference]: With dead ends: 1821 [2021-12-22 15:43:01,499 INFO L226 Difference]: Without dead ends: 1819 [2021-12-22 15:43:01,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:01,502 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:01,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2594 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2021-12-22 15:43:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1819. [2021-12-22 15:43:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1092 states have (on average 1.249084249084249) internal successors, (1364), 1125 states have internal predecessors, (1364), 632 states have call successors, (632), 93 states have call predecessors, (632), 92 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2021-12-22 15:43:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2625 transitions. [2021-12-22 15:43:01,592 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2625 transitions. Word has length 61 [2021-12-22 15:43:01,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:01,593 INFO L470 AbstractCegarLoop]: Abstraction has 1819 states and 2625 transitions. [2021-12-22 15:43:01,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:43:01,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2625 transitions. [2021-12-22 15:43:01,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-22 15:43:01,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:01,594 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:01,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:43:01,595 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:01,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:01,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1198945644, now seen corresponding path program 1 times [2021-12-22 15:43:01,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:01,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500347170] [2021-12-22 15:43:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:01,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:43:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:43:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 15:43:01,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:01,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500347170] [2021-12-22 15:43:01,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500347170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:01,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:01,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 15:43:01,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58186476] [2021-12-22 15:43:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:01,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:43:01,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:01,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:43:01,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:43:01,726 INFO L87 Difference]: Start difference. First operand 1819 states and 2625 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 15:43:02,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:02,059 INFO L93 Difference]: Finished difference Result 5413 states and 7873 transitions. [2021-12-22 15:43:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:43:02,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2021-12-22 15:43:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:02,083 INFO L225 Difference]: With dead ends: 5413 [2021-12-22 15:43:02,085 INFO L226 Difference]: Without dead ends: 3615 [2021-12-22 15:43:02,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:43:02,102 INFO L933 BasicCegarLoop]: 3519 mSDtfsCounter, 2589 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2589 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:02,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2589 Valid, 6035 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 15:43:02,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2021-12-22 15:43:02,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 3570. [2021-12-22 15:43:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3570 states, 2140 states have (on average 1.233644859813084) internal successors, (2640), 2203 states have internal predecessors, (2640), 1247 states have call successors, (1247), 181 states have call predecessors, (1247), 180 states have return successors, (1270), 1219 states have call predecessors, (1270), 1244 states have call successors, (1270) [2021-12-22 15:43:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 5157 transitions. [2021-12-22 15:43:02,310 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 5157 transitions. Word has length 75 [2021-12-22 15:43:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:02,311 INFO L470 AbstractCegarLoop]: Abstraction has 3570 states and 5157 transitions. [2021-12-22 15:43:02,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 15:43:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 5157 transitions. [2021-12-22 15:43:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-22 15:43:02,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:02,313 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:02,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:43:02,313 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:02,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:02,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1652858050, now seen corresponding path program 1 times [2021-12-22 15:43:02,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:02,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908081117] [2021-12-22 15:43:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:02,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 15:43:02,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:02,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908081117] [2021-12-22 15:43:02,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908081117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:02,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:02,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:02,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276612114] [2021-12-22 15:43:02,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:02,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:02,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:02,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:02,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:02,452 INFO L87 Difference]: Start difference. First operand 3570 states and 5157 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 15:43:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:02,604 INFO L93 Difference]: Finished difference Result 3576 states and 5162 transitions. [2021-12-22 15:43:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 66 [2021-12-22 15:43:02,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:02,626 INFO L225 Difference]: With dead ends: 3576 [2021-12-22 15:43:02,627 INFO L226 Difference]: Without dead ends: 3574 [2021-12-22 15:43:02,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:02,632 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2593 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:02,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2593 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2021-12-22 15:43:02,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3574. [2021-12-22 15:43:02,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 2143 states have (on average 1.2333177788147456) internal successors, (2643), 2206 states have internal predecessors, (2643), 1247 states have call successors, (1247), 182 states have call predecessors, (1247), 181 states have return successors, (1270), 1219 states have call predecessors, (1270), 1244 states have call successors, (1270) [2021-12-22 15:43:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5160 transitions. [2021-12-22 15:43:02,840 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5160 transitions. Word has length 66 [2021-12-22 15:43:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:02,840 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 5160 transitions. [2021-12-22 15:43:02,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 15:43:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5160 transitions. [2021-12-22 15:43:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-22 15:43:02,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:02,842 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:02,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:43:02,842 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:02,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1082007647, now seen corresponding path program 1 times [2021-12-22 15:43:02,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:02,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311051375] [2021-12-22 15:43:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:02,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-22 15:43:02,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:02,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311051375] [2021-12-22 15:43:02,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311051375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:02,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:02,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:02,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953169959] [2021-12-22 15:43:02,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:02,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:02,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:02,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:02,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:02,973 INFO L87 Difference]: Start difference. First operand 3574 states and 5160 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 15:43:03,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:03,119 INFO L93 Difference]: Finished difference Result 3580 states and 5165 transitions. [2021-12-22 15:43:03,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:03,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 71 [2021-12-22 15:43:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:03,140 INFO L225 Difference]: With dead ends: 3580 [2021-12-22 15:43:03,141 INFO L226 Difference]: Without dead ends: 3578 [2021-12-22 15:43:03,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:03,143 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:03,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2592 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2021-12-22 15:43:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3578. [2021-12-22 15:43:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3578 states, 2146 states have (on average 1.232991612301957) internal successors, (2646), 2209 states have internal predecessors, (2646), 1247 states have call successors, (1247), 183 states have call predecessors, (1247), 182 states have return successors, (1270), 1219 states have call predecessors, (1270), 1244 states have call successors, (1270) [2021-12-22 15:43:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 5163 transitions. [2021-12-22 15:43:03,339 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 5163 transitions. Word has length 71 [2021-12-22 15:43:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:03,339 INFO L470 AbstractCegarLoop]: Abstraction has 3578 states and 5163 transitions. [2021-12-22 15:43:03,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 15:43:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 5163 transitions. [2021-12-22 15:43:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-22 15:43:03,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:03,341 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:03,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:43:03,341 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:03,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:03,342 INFO L85 PathProgramCache]: Analyzing trace with hash 859160798, now seen corresponding path program 1 times [2021-12-22 15:43:03,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:03,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543013950] [2021-12-22 15:43:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:03,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-22 15:43:03,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:03,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543013950] [2021-12-22 15:43:03,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543013950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:03,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:03,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:03,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795197766] [2021-12-22 15:43:03,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:03,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:03,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:03,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:03,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:03,465 INFO L87 Difference]: Start difference. First operand 3578 states and 5163 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:43:03,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:03,641 INFO L93 Difference]: Finished difference Result 3584 states and 5168 transitions. [2021-12-22 15:43:03,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:03,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2021-12-22 15:43:03,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:03,689 INFO L225 Difference]: With dead ends: 3584 [2021-12-22 15:43:03,689 INFO L226 Difference]: Without dead ends: 3582 [2021-12-22 15:43:03,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:03,692 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:03,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2591 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2021-12-22 15:43:03,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3582. [2021-12-22 15:43:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 2149 states have (on average 1.2326663564448581) internal successors, (2649), 2212 states have internal predecessors, (2649), 1247 states have call successors, (1247), 184 states have call predecessors, (1247), 183 states have return successors, (1270), 1219 states have call predecessors, (1270), 1244 states have call successors, (1270) [2021-12-22 15:43:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5166 transitions. [2021-12-22 15:43:03,943 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5166 transitions. Word has length 76 [2021-12-22 15:43:03,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:03,944 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 5166 transitions. [2021-12-22 15:43:03,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:43:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5166 transitions. [2021-12-22 15:43:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 15:43:03,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:03,949 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:03,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:43:03,950 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:03,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:03,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1912288641, now seen corresponding path program 1 times [2021-12-22 15:43:03,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:03,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708400210] [2021-12-22 15:43:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:03,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-22 15:43:04,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:04,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708400210] [2021-12-22 15:43:04,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708400210] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:04,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:04,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:04,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771721640] [2021-12-22 15:43:04,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:04,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:04,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:04,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:04,085 INFO L87 Difference]: Start difference. First operand 3582 states and 5166 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:43:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:04,243 INFO L93 Difference]: Finished difference Result 3588 states and 5171 transitions. [2021-12-22 15:43:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:04,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 81 [2021-12-22 15:43:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:04,265 INFO L225 Difference]: With dead ends: 3588 [2021-12-22 15:43:04,265 INFO L226 Difference]: Without dead ends: 3586 [2021-12-22 15:43:04,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:04,269 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:04,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2590 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2021-12-22 15:43:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3586. [2021-12-22 15:43:04,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 2152 states have (on average 1.2323420074349443) internal successors, (2652), 2215 states have internal predecessors, (2652), 1247 states have call successors, (1247), 185 states have call predecessors, (1247), 184 states have return successors, (1270), 1219 states have call predecessors, (1270), 1244 states have call successors, (1270) [2021-12-22 15:43:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 5169 transitions. [2021-12-22 15:43:04,489 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 5169 transitions. Word has length 81 [2021-12-22 15:43:04,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:04,489 INFO L470 AbstractCegarLoop]: Abstraction has 3586 states and 5169 transitions. [2021-12-22 15:43:04,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:43:04,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 5169 transitions. [2021-12-22 15:43:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-22 15:43:04,491 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:04,491 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:04,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 15:43:04,491 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:04,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash 510013934, now seen corresponding path program 1 times [2021-12-22 15:43:04,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:04,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033368319] [2021-12-22 15:43:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:04,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:43:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:43:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:43:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 15:43:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 15:43:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 15:43:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-22 15:43:04,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:04,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033368319] [2021-12-22 15:43:04,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033368319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:04,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:04,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:04,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119225643] [2021-12-22 15:43:04,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:04,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:04,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:04,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:04,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:04,655 INFO L87 Difference]: Start difference. First operand 3586 states and 5169 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 15:43:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:04,821 INFO L93 Difference]: Finished difference Result 3592 states and 5174 transitions. [2021-12-22 15:43:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 95 [2021-12-22 15:43:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:04,844 INFO L225 Difference]: With dead ends: 3592 [2021-12-22 15:43:04,844 INFO L226 Difference]: Without dead ends: 3590 [2021-12-22 15:43:04,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:04,848 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2574 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:04,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:04,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-12-22 15:43:05,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2021-12-22 15:43:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 2155 states have (on average 1.2320185614849188) internal successors, (2655), 2218 states have internal predecessors, (2655), 1247 states have call successors, (1247), 186 states have call predecessors, (1247), 185 states have return successors, (1270), 1219 states have call predecessors, (1270), 1244 states have call successors, (1270) [2021-12-22 15:43:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 5172 transitions. [2021-12-22 15:43:05,076 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 5172 transitions. Word has length 95 [2021-12-22 15:43:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:05,077 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 5172 transitions. [2021-12-22 15:43:05,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-22 15:43:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 5172 transitions. [2021-12-22 15:43:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 15:43:05,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:05,078 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:05,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 15:43:05,079 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash -202301967, now seen corresponding path program 1 times [2021-12-22 15:43:05,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:05,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250920177] [2021-12-22 15:43:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:05,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:43:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:43:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:43:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 15:43:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 15:43:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 15:43:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:43:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-22 15:43:05,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:05,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250920177] [2021-12-22 15:43:05,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250920177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:05,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:05,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:05,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519776864] [2021-12-22 15:43:05,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:05,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:05,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:05,202 INFO L87 Difference]: Start difference. First operand 3590 states and 5172 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:43:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:05,405 INFO L93 Difference]: Finished difference Result 4834 states and 7008 transitions. [2021-12-22 15:43:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:05,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 100 [2021-12-22 15:43:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:05,430 INFO L225 Difference]: With dead ends: 4834 [2021-12-22 15:43:05,430 INFO L226 Difference]: Without dead ends: 4832 [2021-12-22 15:43:05,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:05,435 INFO L933 BasicCegarLoop]: 3437 mSDtfsCounter, 1881 mSDsluCounter, 8461 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 11898 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:05,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1886 Valid, 11898 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:05,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2021-12-22 15:43:05,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4832. [2021-12-22 15:43:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 2814 states have (on average 1.2309879175550817) internal successors, (3464), 2889 states have internal predecessors, (3464), 1759 states have call successors, (1759), 257 states have call predecessors, (1759), 256 states have return successors, (1783), 1725 states have call predecessors, (1783), 1756 states have call successors, (1783) [2021-12-22 15:43:05,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7006 transitions. [2021-12-22 15:43:05,707 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7006 transitions. Word has length 100 [2021-12-22 15:43:05,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:05,708 INFO L470 AbstractCegarLoop]: Abstraction has 4832 states and 7006 transitions. [2021-12-22 15:43:05,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-22 15:43:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7006 transitions. [2021-12-22 15:43:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-22 15:43:05,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:05,709 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:05,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 15:43:05,710 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:05,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2060186654, now seen corresponding path program 1 times [2021-12-22 15:43:05,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:05,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953152479] [2021-12-22 15:43:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:05,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-22 15:43:05,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:05,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953152479] [2021-12-22 15:43:05,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953152479] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:05,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:05,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:05,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664404572] [2021-12-22 15:43:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:05,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:05,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:05,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:05,877 INFO L87 Difference]: Start difference. First operand 4832 states and 7006 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:43:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:06,097 INFO L93 Difference]: Finished difference Result 4838 states and 7011 transitions. [2021-12-22 15:43:06,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2021-12-22 15:43:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:06,123 INFO L225 Difference]: With dead ends: 4838 [2021-12-22 15:43:06,123 INFO L226 Difference]: Without dead ends: 4836 [2021-12-22 15:43:06,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:06,129 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:06,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2587 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:06,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4836 states. [2021-12-22 15:43:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4836 to 4836. [2021-12-22 15:43:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4836 states, 2817 states have (on average 1.230741924032659) internal successors, (3467), 2892 states have internal predecessors, (3467), 1759 states have call successors, (1759), 258 states have call predecessors, (1759), 257 states have return successors, (1783), 1725 states have call predecessors, (1783), 1756 states have call successors, (1783) [2021-12-22 15:43:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4836 states to 4836 states and 7009 transitions. [2021-12-22 15:43:06,486 INFO L78 Accepts]: Start accepts. Automaton has 4836 states and 7009 transitions. Word has length 96 [2021-12-22 15:43:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:06,487 INFO L470 AbstractCegarLoop]: Abstraction has 4836 states and 7009 transitions. [2021-12-22 15:43:06,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 15:43:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4836 states and 7009 transitions. [2021-12-22 15:43:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 15:43:06,489 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:06,489 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:06,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 15:43:06,489 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:06,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash -319329983, now seen corresponding path program 1 times [2021-12-22 15:43:06,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:06,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902743698] [2021-12-22 15:43:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:06,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-22 15:43:06,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:06,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902743698] [2021-12-22 15:43:06,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902743698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:06,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:06,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:06,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782899096] [2021-12-22 15:43:06,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:06,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:06,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:06,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:06,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:06,675 INFO L87 Difference]: Start difference. First operand 4836 states and 7009 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:43:06,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:06,931 INFO L93 Difference]: Finished difference Result 4842 states and 7014 transitions. [2021-12-22 15:43:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:06,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 101 [2021-12-22 15:43:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:06,958 INFO L225 Difference]: With dead ends: 4842 [2021-12-22 15:43:06,958 INFO L226 Difference]: Without dead ends: 4840 [2021-12-22 15:43:06,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:06,963 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:06,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2586 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2021-12-22 15:43:07,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 4840. [2021-12-22 15:43:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4840 states, 2820 states have (on average 1.2304964539007093) internal successors, (3470), 2895 states have internal predecessors, (3470), 1759 states have call successors, (1759), 259 states have call predecessors, (1759), 258 states have return successors, (1783), 1725 states have call predecessors, (1783), 1756 states have call successors, (1783) [2021-12-22 15:43:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 7012 transitions. [2021-12-22 15:43:07,276 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 7012 transitions. Word has length 101 [2021-12-22 15:43:07,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:07,277 INFO L470 AbstractCegarLoop]: Abstraction has 4840 states and 7012 transitions. [2021-12-22 15:43:07,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:43:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 7012 transitions. [2021-12-22 15:43:07,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-22 15:43:07,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:07,278 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:07,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 15:43:07,278 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash 577805614, now seen corresponding path program 1 times [2021-12-22 15:43:07,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:07,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814532740] [2021-12-22 15:43:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:07,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:43:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:43:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 15:43:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 15:43:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 15:43:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 15:43:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:43:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:43:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 15:43:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:43:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-22 15:43:07,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:07,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814532740] [2021-12-22 15:43:07,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814532740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:07,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:07,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:07,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641908058] [2021-12-22 15:43:07,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:07,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:07,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:07,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:07,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:07,430 INFO L87 Difference]: Start difference. First operand 4840 states and 7012 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:43:07,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:07,641 INFO L93 Difference]: Finished difference Result 4846 states and 7017 transitions. [2021-12-22 15:43:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:07,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 115 [2021-12-22 15:43:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:07,665 INFO L225 Difference]: With dead ends: 4846 [2021-12-22 15:43:07,665 INFO L226 Difference]: Without dead ends: 4844 [2021-12-22 15:43:07,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:07,670 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2574 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:07,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2576 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-12-22 15:43:07,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2021-12-22 15:43:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 2823 states have (on average 1.230251505490613) internal successors, (3473), 2898 states have internal predecessors, (3473), 1759 states have call successors, (1759), 260 states have call predecessors, (1759), 259 states have return successors, (1783), 1725 states have call predecessors, (1783), 1756 states have call successors, (1783) [2021-12-22 15:43:07,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 7015 transitions. [2021-12-22 15:43:07,929 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 7015 transitions. Word has length 115 [2021-12-22 15:43:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:07,929 INFO L470 AbstractCegarLoop]: Abstraction has 4844 states and 7015 transitions. [2021-12-22 15:43:07,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:43:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 7015 transitions. [2021-12-22 15:43:07,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 15:43:07,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:07,932 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:07,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 15:43:07,932 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:07,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:07,932 INFO L85 PathProgramCache]: Analyzing trace with hash -350337247, now seen corresponding path program 1 times [2021-12-22 15:43:07,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:07,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919094999] [2021-12-22 15:43:07,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:07,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:43:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:43:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-22 15:43:08,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:08,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919094999] [2021-12-22 15:43:08,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919094999] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:08,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:08,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:08,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815981326] [2021-12-22 15:43:08,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:08,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:08,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:08,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:08,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:08,074 INFO L87 Difference]: Start difference. First operand 4844 states and 7015 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 15:43:08,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:08,317 INFO L93 Difference]: Finished difference Result 4850 states and 7020 transitions. [2021-12-22 15:43:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:08,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2021-12-22 15:43:08,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:08,341 INFO L225 Difference]: With dead ends: 4850 [2021-12-22 15:43:08,341 INFO L226 Difference]: Without dead ends: 4846 [2021-12-22 15:43:08,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:08,346 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2583 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:08,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2584 Valid, 7827 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4846 states. [2021-12-22 15:43:08,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4846 to 4846. [2021-12-22 15:43:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4846 states, 2825 states have (on average 1.2297345132743362) internal successors, (3474), 2899 states have internal predecessors, (3474), 1759 states have call successors, (1759), 261 states have call predecessors, (1759), 259 states have return successors, (1783), 1725 states have call predecessors, (1783), 1756 states have call successors, (1783) [2021-12-22 15:43:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 7016 transitions. [2021-12-22 15:43:08,598 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 7016 transitions. Word has length 111 [2021-12-22 15:43:08,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:08,599 INFO L470 AbstractCegarLoop]: Abstraction has 4846 states and 7016 transitions. [2021-12-22 15:43:08,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 15:43:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 7016 transitions. [2021-12-22 15:43:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-22 15:43:08,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:08,601 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:43:08,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 15:43:08,601 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2020161698, now seen corresponding path program 1 times [2021-12-22 15:43:08,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:08,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94342154] [2021-12-22 15:43:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:08,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 15:43:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 15:43:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:43:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:43:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:43:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 15:43:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:43:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 15:43:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 15:43:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:43:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 15:43:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 15:43:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:43:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:43:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:43:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-22 15:43:08,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:08,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94342154] [2021-12-22 15:43:08,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94342154] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:08,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:08,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:43:08,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104384500] [2021-12-22 15:43:08,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:08,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:43:08,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:08,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:43:08,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:08,753 INFO L87 Difference]: Start difference. First operand 4846 states and 7016 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-22 15:43:08,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:08,951 INFO L93 Difference]: Finished difference Result 4846 states and 7016 transitions. [2021-12-22 15:43:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:43:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 116 [2021-12-22 15:43:08,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:08,972 INFO L225 Difference]: With dead ends: 4846 [2021-12-22 15:43:08,972 INFO L226 Difference]: Without dead ends: 4723 [2021-12-22 15:43:08,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:43:08,978 INFO L933 BasicCegarLoop]: 2614 mSDtfsCounter, 2579 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 7824 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:08,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2579 Valid, 7824 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:43:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4723 states. [2021-12-22 15:43:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4723 to 4723. [2021-12-22 15:43:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4723 states, 2746 states have (on average 1.2330662782228696) internal successors, (3386), 2817 states have internal predecessors, (3386), 1729 states have call successors, (1729), 246 states have call predecessors, (1729), 246 states have return successors, (1756), 1699 states have call predecessors, (1756), 1729 states have call successors, (1756) [2021-12-22 15:43:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6871 transitions. [2021-12-22 15:43:09,253 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6871 transitions. Word has length 116 [2021-12-22 15:43:09,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:09,253 INFO L470 AbstractCegarLoop]: Abstraction has 4723 states and 6871 transitions. [2021-12-22 15:43:09,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-22 15:43:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6871 transitions. [2021-12-22 15:43:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-22 15:43:09,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:09,257 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-22 15:43:09,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 15:43:09,258 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:09,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:09,258 INFO L85 PathProgramCache]: Analyzing trace with hash 550778797, now seen corresponding path program 1 times [2021-12-22 15:43:09,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:09,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467877886] [2021-12-22 15:43:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:09,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:43:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:43:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 15:43:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:43:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:43:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 15:43:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:43:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 15:43:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:43:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:43:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 15:43:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 15:43:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 15:43:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-22 15:43:09,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:09,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467877886] [2021-12-22 15:43:09,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467877886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:09,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:09,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:43:09,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017294248] [2021-12-22 15:43:09,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:09,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:43:09,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:09,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:43:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:43:09,546 INFO L87 Difference]: Start difference. First operand 4723 states and 6871 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-22 15:43:14,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:14,930 INFO L93 Difference]: Finished difference Result 7115 states and 10325 transitions. [2021-12-22 15:43:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:43:14,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 222 [2021-12-22 15:43:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:14,954 INFO L225 Difference]: With dead ends: 7115 [2021-12-22 15:43:14,954 INFO L226 Difference]: Without dead ends: 4759 [2021-12-22 15:43:14,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:43:14,967 INFO L933 BasicCegarLoop]: 3981 mSDtfsCounter, 2325 mSDsluCounter, 2528 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 6509 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1772 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:14,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2900 Valid, 6509 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1772 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 15:43:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2021-12-22 15:43:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4723. [2021-12-22 15:43:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4723 states, 2746 states have (on average 1.2279679533867442) internal successors, (3372), 2817 states have internal predecessors, (3372), 1729 states have call successors, (1729), 246 states have call predecessors, (1729), 246 states have return successors, (1729), 1699 states have call predecessors, (1729), 1729 states have call successors, (1729) [2021-12-22 15:43:15,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6830 transitions. [2021-12-22 15:43:15,324 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6830 transitions. Word has length 222 [2021-12-22 15:43:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:15,325 INFO L470 AbstractCegarLoop]: Abstraction has 4723 states and 6830 transitions. [2021-12-22 15:43:15,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-22 15:43:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6830 transitions. [2021-12-22 15:43:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-22 15:43:15,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:15,329 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-22 15:43:15,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 15:43:15,329 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:15,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:15,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1885780437, now seen corresponding path program 1 times [2021-12-22 15:43:15,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:15,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782701731] [2021-12-22 15:43:15,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:15,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:43:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:43:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 15:43:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:43:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:43:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 15:43:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:43:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 15:43:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:43:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:43:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 15:43:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 15:43:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 15:43:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-22 15:43:15,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:15,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782701731] [2021-12-22 15:43:15,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782701731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:15,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:15,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:43:15,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854637959] [2021-12-22 15:43:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:15,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:43:15,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:43:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:43:15,663 INFO L87 Difference]: Start difference. First operand 4723 states and 6830 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-22 15:43:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:21,487 INFO L93 Difference]: Finished difference Result 4755 states and 6882 transitions. [2021-12-22 15:43:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:43:21,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 222 [2021-12-22 15:43:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:21,505 INFO L225 Difference]: With dead ends: 4755 [2021-12-22 15:43:21,506 INFO L226 Difference]: Without dead ends: 4753 [2021-12-22 15:43:21,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:43:21,509 INFO L933 BasicCegarLoop]: 2754 mSDtfsCounter, 1819 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 1528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 7649 SdHoareTripleChecker+Invalid, 6485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1528 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:21,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2256 Valid, 7649 Invalid, 6485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1528 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-22 15:43:21,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4753 states. [2021-12-22 15:43:21,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4753 to 4721. [2021-12-22 15:43:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4721 states, 2745 states have (on average 1.2273224043715847) internal successors, (3369), 2815 states have internal predecessors, (3369), 1729 states have call successors, (1729), 246 states have call predecessors, (1729), 246 states have return successors, (1729), 1699 states have call predecessors, (1729), 1729 states have call successors, (1729) [2021-12-22 15:43:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4721 states to 4721 states and 6827 transitions. [2021-12-22 15:43:21,793 INFO L78 Accepts]: Start accepts. Automaton has 4721 states and 6827 transitions. Word has length 222 [2021-12-22 15:43:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:21,793 INFO L470 AbstractCegarLoop]: Abstraction has 4721 states and 6827 transitions. [2021-12-22 15:43:21,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-22 15:43:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4721 states and 6827 transitions. [2021-12-22 15:43:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-22 15:43:21,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:43:21,799 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-22 15:43:21,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 15:43:21,799 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:43:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:43:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2093109281, now seen corresponding path program 1 times [2021-12-22 15:43:21,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:43:21,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354578789] [2021-12-22 15:43:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:43:21,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:43:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 15:43:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:43:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:43:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:43:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:43:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 15:43:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 15:43:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:43:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 15:43:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 15:43:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 15:43:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-22 15:43:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:43:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 15:43:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 15:43:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:43:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:43:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 15:43:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 15:43:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 15:43:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 15:43:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-22 15:43:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:43:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:43:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2021-12-22 15:43:22,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:43:22,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354578789] [2021-12-22 15:43:22,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354578789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:43:22,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:43:22,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:43:22,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404476486] [2021-12-22 15:43:22,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:43:22,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:43:22,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:43:22,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:43:22,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:43:22,056 INFO L87 Difference]: Start difference. First operand 4721 states and 6827 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-22 15:43:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:43:29,991 INFO L93 Difference]: Finished difference Result 5121 states and 7446 transitions. [2021-12-22 15:43:29,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 15:43:29,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 255 [2021-12-22 15:43:29,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:43:29,992 INFO L225 Difference]: With dead ends: 5121 [2021-12-22 15:43:29,993 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 15:43:30,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-22 15:43:30,011 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 3170 mSDsluCounter, 4330 mSDsCounter, 0 mSdLazyCounter, 6135 mSolverCounterSat, 3657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 6496 SdHoareTripleChecker+Invalid, 9792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3657 IncrementalHoareTripleChecker+Valid, 6135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:43:30,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3368 Valid, 6496 Invalid, 9792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3657 Valid, 6135 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-12-22 15:43:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 15:43:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 15:43:30,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 15:43:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 15:43:30,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 255 [2021-12-22 15:43:30,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:43:30,013 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 15:43:30,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-22 15:43:30,013 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 15:43:30,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 15:43:30,016 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-22 15:43:30,016 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-12-22 15:43:30,017 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-22 15:43:30,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 15:43:30,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.