./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 ff03de63 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-ff03de6 [2021-12-21 17:16:20,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:16:20,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:16:20,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:16:20,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:16:20,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:16:20,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:16:20,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:16:20,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:16:20,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:16:20,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:16:20,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:16:20,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:16:20,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:16:20,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:16:20,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:16:20,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:16:20,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:16:20,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:16:20,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:16:20,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:16:20,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:16:20,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:16:20,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:16:20,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:16:20,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:16:20,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:16:20,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:16:20,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:16:20,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:16:20,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:16:20,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:16:20,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:16:20,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:16:20,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:16:20,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:16:20,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:16:20,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:16:20,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:16:20,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:16:20,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:16:20,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:16:20,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:16:20,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:16:20,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:16:20,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:16:20,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:16:20,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:16:20,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:16:20,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:16:20,373 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:16:20,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:16:20,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:16:20,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:16:20,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:16:20,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:16:20,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:16:20,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:16:20,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:16:20,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:16:20,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:16:20,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:16:20,376 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:16:20,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:16:20,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:16:20,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:16:20,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2021-12-21 17:16:20,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:16:20,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:16:20,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:16:20,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:16:20,667 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:16:20,669 INFO L432 ainManager$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 [2021-12-21 17:16:20,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b6c18e8/a76dc98eef194727ae2555ba11bbdbc1/FLAG0785a605c [2021-12-21 17:16:21,464 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:16:21,465 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 [2021-12-21 17:16:21,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b6c18e8/a76dc98eef194727ae2555ba11bbdbc1/FLAG0785a605c [2021-12-21 17:16:21,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b6c18e8/a76dc98eef194727ae2555ba11bbdbc1 [2021-12-21 17:16:21,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:16:21,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:16:21,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:16:21,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:16:21,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:16:21,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:16:21" (1/1) ... [2021-12-21 17:16:21,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba99a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:21, skipping insertion in model container [2021-12-21 17:16:21,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:16:21" (1/1) ... [2021-12-21 17:16:21,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:16:21,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:16:24,167 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] [2021-12-21 17:16:24,169 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] [2021-12-21 17:16:24,170 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] [2021-12-21 17:16:24,170 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] [2021-12-21 17:16:24,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:16:24,221 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:16:24,518 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] [2021-12-21 17:16:24,519 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] [2021-12-21 17:16:24,519 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] [2021-12-21 17:16:24,520 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] [2021-12-21 17:16:24,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:16:24,723 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:16:24,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24 WrapperNode [2021-12-21 17:16:24,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:16:24,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:16:24,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:16:24,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:16:24,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:24,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,050 INFO L137 Inliner]: procedures = 386, calls = 2027, calls flagged for inlining = 151, calls inlined = 130, statements flattened = 4118 [2021-12-21 17:16:25,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:16:25,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:16:25,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:16:25,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:16:25,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:16:25,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:16:25,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:16:25,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:16:25,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (1/1) ... [2021-12-21 17:16:25,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:16:25,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:16:25,312 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) [2021-12-21 17:16:25,337 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 [2021-12-21 17:16:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:16:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:16:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-12-21 17:16:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-12-21 17:16:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-12-21 17:16:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-12-21 17:16:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:16:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:16:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:16:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:16:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2021-12-21 17:16:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2021-12-21 17:16:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 17:16:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 17:16:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-12-21 17:16:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-12-21 17:16:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:16:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:16:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-12-21 17:16:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-12-21 17:16:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-12-21 17:16:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-12-21 17:16:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-21 17:16:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-21 17:16:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:16:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:16:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-12-21 17:16:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-12-21 17:16:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-12-21 17:16:25,363 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-12-21 17:16:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-21 17:16:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-21 17:16:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:16:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:16:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:16:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-12-21 17:16:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-12-21 17:16:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-12-21 17:16:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-12-21 17:16:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-21 17:16:25,365 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-21 17:16:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-12-21 17:16:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-12-21 17:16:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:16:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:16:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-12-21 17:16:25,366 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-12-21 17:16:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-12-21 17:16:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-12-21 17:16:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:16:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-12-21 17:16:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-12-21 17:16:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-12-21 17:16:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-12-21 17:16:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-12-21 17:16:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-12-21 17:16:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:16:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:16:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:16:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:16:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:16:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-12-21 17:16:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-12-21 17:16:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:16:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:16:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:16:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-12-21 17:16:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-12-21 17:16:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:16:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:16:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:16:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:16:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-12-21 17:16:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-12-21 17:16:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-12-21 17:16:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-12-21 17:16:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-12-21 17:16:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-12-21 17:16:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:16:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:16:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-12-21 17:16:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-12-21 17:16:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:16:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-12-21 17:16:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-12-21 17:16:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:16:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:16:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:16:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:16:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:16:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:16:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:16:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:16:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:16:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:16:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-12-21 17:16:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-12-21 17:16:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-21 17:16:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-21 17:16:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:16:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:16:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-12-21 17:16:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-12-21 17:16:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-12-21 17:16:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-12-21 17:16:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:16:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:16:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:16:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:16:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-12-21 17:16:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-12-21 17:16:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:16:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:16:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-12-21 17:16:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-12-21 17:16:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:16:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:16:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:16:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:16:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-12-21 17:16:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-12-21 17:16:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:16:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:16:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-21 17:16:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-21 17:16:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-12-21 17:16:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-12-21 17:16:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-12-21 17:16:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-12-21 17:16:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:16:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:16:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-12-21 17:16:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-12-21 17:16:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-12-21 17:16:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-12-21 17:16:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:16:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:16:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:16:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:16:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-12-21 17:16:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-12-21 17:16:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:16:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:16:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:16:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-21 17:16:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-21 17:16:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:16:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:16:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-21 17:16:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-21 17:16:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:16:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:16:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-21 17:16:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-21 17:16:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-12-21 17:16:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-12-21 17:16:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-21 17:16:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-21 17:16:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 17:16:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 17:16:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:16:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:16:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:16:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:16:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-21 17:16:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-21 17:16:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:16:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-21 17:16:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-21 17:16:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-12-21 17:16:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-12-21 17:16:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-21 17:16:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-21 17:16:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:16:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:16:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-12-21 17:16:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-12-21 17:16:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-12-21 17:16:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-12-21 17:16:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-12-21 17:16:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-12-21 17:16:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:16:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:16:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-12-21 17:16:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-12-21 17:16:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-12-21 17:16:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-12-21 17:16:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-12-21 17:16:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-12-21 17:16:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-21 17:16:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-21 17:16:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:16:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-21 17:16:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-21 17:16:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:16:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:16:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-21 17:16:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-21 17:16:26,060 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:16:26,063 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:16:26,205 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:16:30,288 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:16:30,308 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:16:30,309 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:16:30,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:16:30 BoogieIcfgContainer [2021-12-21 17:16:30,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:16:30,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:16:30,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:16:30,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:16:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:16:21" (1/3) ... [2021-12-21 17:16:30,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c049a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:16:30, skipping insertion in model container [2021-12-21 17:16:30,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:16:24" (2/3) ... [2021-12-21 17:16:30,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c049a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:16:30, skipping insertion in model container [2021-12-21 17:16:30,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:16:30" (3/3) ... [2021-12-21 17:16:30,319 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-12-21 17:16:30,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:16:30,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:16:30,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:16:30,370 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 [2021-12-21 17:16:30,371 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:16:30,412 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) [2021-12-21 17:16:30,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 17:16:30,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:30,418 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] [2021-12-21 17:16:30,419 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)] === [2021-12-21 17:16:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:30,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1380008991, now seen corresponding path program 1 times [2021-12-21 17:16:30,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:30,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049811559] [2021-12-21 17:16:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:30,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 17:16:30,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:30,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049811559] [2021-12-21 17:16:30,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049811559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:30,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:30,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:30,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467555740] [2021-12-21 17:16:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:30,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:30,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:31,030 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) [2021-12-21 17:16:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:31,428 INFO L93 Difference]: Finished difference Result 3611 states and 5273 transitions. [2021-12-21 17:16:31,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:31,431 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 [2021-12-21 17:16:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:31,466 INFO L225 Difference]: With dead ends: 3611 [2021-12-21 17:16:31,467 INFO L226 Difference]: Without dead ends: 1811 [2021-12-21 17:16:31,487 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 [2021-12-21 17:16:31,492 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 [2021-12-21 17:16:31,493 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] [2021-12-21 17:16:31,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-12-21 17:16:31,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2021-12-21 17:16:31,695 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) [2021-12-21 17:16:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2619 transitions. [2021-12-21 17:16:31,720 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2619 transitions. Word has length 51 [2021-12-21 17:16:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:31,720 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2619 transitions. [2021-12-21 17:16:31,721 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) [2021-12-21 17:16:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2619 transitions. [2021-12-21 17:16:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-21 17:16:31,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:31,724 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] [2021-12-21 17:16:31,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:16:31,725 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)] === [2021-12-21 17:16:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1587270242, now seen corresponding path program 1 times [2021-12-21 17:16:31,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:31,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881999126] [2021-12-21 17:16:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:31,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 17:16:31,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:31,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881999126] [2021-12-21 17:16:31,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881999126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:31,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:31,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:31,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165400500] [2021-12-21 17:16:31,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:31,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:31,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:31,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:32,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:32,000 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) [2021-12-21 17:16:32,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:32,162 INFO L93 Difference]: Finished difference Result 1817 states and 2624 transitions. [2021-12-21 17:16:32,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:32,163 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 [2021-12-21 17:16:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:32,177 INFO L225 Difference]: With dead ends: 1817 [2021-12-21 17:16:32,177 INFO L226 Difference]: Without dead ends: 1815 [2021-12-21 17:16:32,182 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 [2021-12-21 17:16:32,184 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 [2021-12-21 17:16:32,185 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] [2021-12-21 17:16:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2021-12-21 17:16:32,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2021-12-21 17:16:32,317 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) [2021-12-21 17:16:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2622 transitions. [2021-12-21 17:16:32,332 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2622 transitions. Word has length 56 [2021-12-21 17:16:32,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:32,333 INFO L470 AbstractCegarLoop]: Abstraction has 1815 states and 2622 transitions. [2021-12-21 17:16:32,333 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) [2021-12-21 17:16:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2622 transitions. [2021-12-21 17:16:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-21 17:16:32,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:32,341 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] [2021-12-21 17:16:32,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:16:32,341 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)] === [2021-12-21 17:16:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1126064577, now seen corresponding path program 1 times [2021-12-21 17:16:32,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750982052] [2021-12-21 17:16:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:32,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-21 17:16:32,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:32,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750982052] [2021-12-21 17:16:32,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750982052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:32,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:32,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:32,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529354564] [2021-12-21 17:16:32,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:32,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:32,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:32,588 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) [2021-12-21 17:16:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:32,720 INFO L93 Difference]: Finished difference Result 1821 states and 2627 transitions. [2021-12-21 17:16:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:32,723 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 [2021-12-21 17:16:32,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:32,743 INFO L225 Difference]: With dead ends: 1821 [2021-12-21 17:16:32,743 INFO L226 Difference]: Without dead ends: 1819 [2021-12-21 17:16:32,747 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 [2021-12-21 17:16:32,751 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 [2021-12-21 17:16:32,753 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] [2021-12-21 17:16:32,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2021-12-21 17:16:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1819. [2021-12-21 17:16:32,847 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) [2021-12-21 17:16:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2625 transitions. [2021-12-21 17:16:32,865 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2625 transitions. Word has length 61 [2021-12-21 17:16:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:32,865 INFO L470 AbstractCegarLoop]: Abstraction has 1819 states and 2625 transitions. [2021-12-21 17:16:32,867 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) [2021-12-21 17:16:32,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2625 transitions. [2021-12-21 17:16:32,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-21 17:16:32,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:32,870 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] [2021-12-21 17:16:32,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:16:32,870 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:16:32,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:32,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1198945644, now seen corresponding path program 1 times [2021-12-21 17:16:32,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:32,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970318856] [2021-12-21 17:16:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:32,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:16:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 17:16:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-21 17:16:33,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:33,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970318856] [2021-12-21 17:16:33,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970318856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:33,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:33,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 17:16:33,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921364513] [2021-12-21 17:16:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:33,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 17:16:33,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:33,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 17:16:33,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 17:16:33,096 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) [2021-12-21 17:16:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:33,505 INFO L93 Difference]: Finished difference Result 5413 states and 7873 transitions. [2021-12-21 17:16:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 17:16:33,506 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 [2021-12-21 17:16:33,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:33,536 INFO L225 Difference]: With dead ends: 5413 [2021-12-21 17:16:33,539 INFO L226 Difference]: Without dead ends: 3615 [2021-12-21 17:16:33,559 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 [2021-12-21 17:16:33,561 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:16:33,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2589 Valid, 6035 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 17:16:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2021-12-21 17:16:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 3570. [2021-12-21 17:16:33,844 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) [2021-12-21 17:16:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 5157 transitions. [2021-12-21 17:16:33,867 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 5157 transitions. Word has length 75 [2021-12-21 17:16:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:33,868 INFO L470 AbstractCegarLoop]: Abstraction has 3570 states and 5157 transitions. [2021-12-21 17:16:33,868 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) [2021-12-21 17:16:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 5157 transitions. [2021-12-21 17:16:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-21 17:16:33,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:33,872 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] [2021-12-21 17:16:33,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:16:33,872 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)] === [2021-12-21 17:16:33,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:33,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1652858050, now seen corresponding path program 1 times [2021-12-21 17:16:33,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:33,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788140436] [2021-12-21 17:16:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:33,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-21 17:16:34,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:34,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788140436] [2021-12-21 17:16:34,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788140436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:34,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:34,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:34,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028860137] [2021-12-21 17:16:34,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:34,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:34,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:34,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:34,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:34,048 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) [2021-12-21 17:16:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:34,275 INFO L93 Difference]: Finished difference Result 3576 states and 5162 transitions. [2021-12-21 17:16:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:34,275 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 [2021-12-21 17:16:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:34,309 INFO L225 Difference]: With dead ends: 3576 [2021-12-21 17:16:34,309 INFO L226 Difference]: Without dead ends: 3574 [2021-12-21 17:16:34,314 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 [2021-12-21 17:16:34,315 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 [2021-12-21 17:16:34,316 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] [2021-12-21 17:16:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2021-12-21 17:16:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3574. [2021-12-21 17:16:34,628 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) [2021-12-21 17:16:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5160 transitions. [2021-12-21 17:16:34,656 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5160 transitions. Word has length 66 [2021-12-21 17:16:34,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:34,658 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 5160 transitions. [2021-12-21 17:16:34,659 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) [2021-12-21 17:16:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5160 transitions. [2021-12-21 17:16:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-21 17:16:34,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:34,661 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] [2021-12-21 17:16:34,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:16:34,661 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)] === [2021-12-21 17:16:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1082007647, now seen corresponding path program 1 times [2021-12-21 17:16:34,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:34,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583970002] [2021-12-21 17:16:34,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:34,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-21 17:16:34,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:34,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583970002] [2021-12-21 17:16:34,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583970002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:34,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:34,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:34,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625681644] [2021-12-21 17:16:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:34,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:34,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:34,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:34,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:34,859 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) [2021-12-21 17:16:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:35,108 INFO L93 Difference]: Finished difference Result 3580 states and 5165 transitions. [2021-12-21 17:16:35,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:35,108 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 [2021-12-21 17:16:35,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:35,138 INFO L225 Difference]: With dead ends: 3580 [2021-12-21 17:16:35,138 INFO L226 Difference]: Without dead ends: 3578 [2021-12-21 17:16:35,143 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 [2021-12-21 17:16:35,144 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 [2021-12-21 17:16:35,144 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] [2021-12-21 17:16:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2021-12-21 17:16:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3578. [2021-12-21 17:16:35,429 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) [2021-12-21 17:16:35,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 5163 transitions. [2021-12-21 17:16:35,451 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 5163 transitions. Word has length 71 [2021-12-21 17:16:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:35,452 INFO L470 AbstractCegarLoop]: Abstraction has 3578 states and 5163 transitions. [2021-12-21 17:16:35,452 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) [2021-12-21 17:16:35,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 5163 transitions. [2021-12-21 17:16:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-21 17:16:35,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:35,454 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] [2021-12-21 17:16:35,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:16:35,454 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)] === [2021-12-21 17:16:35,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:35,455 INFO L85 PathProgramCache]: Analyzing trace with hash 859160798, now seen corresponding path program 1 times [2021-12-21 17:16:35,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:35,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603566803] [2021-12-21 17:16:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:35,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 17:16:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:35,602 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-21 17:16:35,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:35,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603566803] [2021-12-21 17:16:35,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603566803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:35,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:35,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:35,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21556530] [2021-12-21 17:16:35,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:35,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:35,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:35,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:35,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:35,604 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) [2021-12-21 17:16:35,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:35,819 INFO L93 Difference]: Finished difference Result 3584 states and 5168 transitions. [2021-12-21 17:16:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:35,820 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 [2021-12-21 17:16:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:35,844 INFO L225 Difference]: With dead ends: 3584 [2021-12-21 17:16:35,844 INFO L226 Difference]: Without dead ends: 3582 [2021-12-21 17:16:35,849 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 [2021-12-21 17:16:35,850 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 [2021-12-21 17:16:35,850 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] [2021-12-21 17:16:35,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2021-12-21 17:16:36,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3582. [2021-12-21 17:16:36,066 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) [2021-12-21 17:16:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5166 transitions. [2021-12-21 17:16:36,099 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5166 transitions. Word has length 76 [2021-12-21 17:16:36,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:36,100 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 5166 transitions. [2021-12-21 17:16:36,100 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) [2021-12-21 17:16:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5166 transitions. [2021-12-21 17:16:36,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-21 17:16:36,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:36,102 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] [2021-12-21 17:16:36,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:16:36,102 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)] === [2021-12-21 17:16:36,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:36,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1912288641, now seen corresponding path program 1 times [2021-12-21 17:16:36,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:36,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770953480] [2021-12-21 17:16:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:36,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 17:16:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 17:16:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-21 17:16:36,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:36,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770953480] [2021-12-21 17:16:36,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770953480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:36,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:36,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:36,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140871889] [2021-12-21 17:16:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:36,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:36,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:36,313 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) [2021-12-21 17:16:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:36,536 INFO L93 Difference]: Finished difference Result 3588 states and 5171 transitions. [2021-12-21 17:16:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:36,537 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 [2021-12-21 17:16:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:36,562 INFO L225 Difference]: With dead ends: 3588 [2021-12-21 17:16:36,562 INFO L226 Difference]: Without dead ends: 3586 [2021-12-21 17:16:36,565 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 [2021-12-21 17:16:36,566 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 [2021-12-21 17:16:36,566 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] [2021-12-21 17:16:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2021-12-21 17:16:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3586. [2021-12-21 17:16:36,775 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) [2021-12-21 17:16:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 5169 transitions. [2021-12-21 17:16:36,797 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 5169 transitions. Word has length 81 [2021-12-21 17:16:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:36,798 INFO L470 AbstractCegarLoop]: Abstraction has 3586 states and 5169 transitions. [2021-12-21 17:16:36,798 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) [2021-12-21 17:16:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 5169 transitions. [2021-12-21 17:16:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-21 17:16:36,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:36,799 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] [2021-12-21 17:16:36,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 17:16:36,800 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)] === [2021-12-21 17:16:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 510013934, now seen corresponding path program 1 times [2021-12-21 17:16:36,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:36,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971108358] [2021-12-21 17:16:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:36,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:16:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 17:16:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 17:16:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-21 17:16:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-21 17:16:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-21 17:16:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 17:16:36,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:36,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971108358] [2021-12-21 17:16:36,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971108358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:36,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:36,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:36,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272780376] [2021-12-21 17:16:36,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:36,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:36,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:36,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:36,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:36,963 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) [2021-12-21 17:16:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:37,217 INFO L93 Difference]: Finished difference Result 3592 states and 5174 transitions. [2021-12-21 17:16:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:37,218 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 [2021-12-21 17:16:37,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:37,239 INFO L225 Difference]: With dead ends: 3592 [2021-12-21 17:16:37,239 INFO L226 Difference]: Without dead ends: 3590 [2021-12-21 17:16:37,241 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 [2021-12-21 17:16:37,242 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 [2021-12-21 17:16:37,242 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] [2021-12-21 17:16:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-12-21 17:16:37,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2021-12-21 17:16:37,434 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) [2021-12-21 17:16:37,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 5172 transitions. [2021-12-21 17:16:37,454 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 5172 transitions. Word has length 95 [2021-12-21 17:16:37,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:37,455 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 5172 transitions. [2021-12-21 17:16:37,455 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) [2021-12-21 17:16:37,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 5172 transitions. [2021-12-21 17:16:37,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-21 17:16:37,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:37,457 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] [2021-12-21 17:16:37,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 17:16:37,457 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)] === [2021-12-21 17:16:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:37,458 INFO L85 PathProgramCache]: Analyzing trace with hash -202301967, now seen corresponding path program 1 times [2021-12-21 17:16:37,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:37,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238867993] [2021-12-21 17:16:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:37,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:16:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 17:16:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 17:16:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-21 17:16:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-21 17:16:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-21 17:16:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:16:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-21 17:16:37,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:37,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238867993] [2021-12-21 17:16:37,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238867993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:37,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:37,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:37,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932602177] [2021-12-21 17:16:37,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:37,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:37,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:37,619 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) [2021-12-21 17:16:37,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:37,886 INFO L93 Difference]: Finished difference Result 4834 states and 7008 transitions. [2021-12-21 17:16:37,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:37,886 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 [2021-12-21 17:16:37,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:37,915 INFO L225 Difference]: With dead ends: 4834 [2021-12-21 17:16:37,916 INFO L226 Difference]: Without dead ends: 4832 [2021-12-21 17:16:37,922 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 [2021-12-21 17:16:37,923 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 [2021-12-21 17:16:37,923 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] [2021-12-21 17:16:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2021-12-21 17:16:38,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4832. [2021-12-21 17:16:38,285 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) [2021-12-21 17:16:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7006 transitions. [2021-12-21 17:16:38,314 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7006 transitions. Word has length 100 [2021-12-21 17:16:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:38,315 INFO L470 AbstractCegarLoop]: Abstraction has 4832 states and 7006 transitions. [2021-12-21 17:16:38,315 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) [2021-12-21 17:16:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7006 transitions. [2021-12-21 17:16:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-21 17:16:38,317 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:38,317 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] [2021-12-21 17:16:38,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 17:16:38,317 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)] === [2021-12-21 17:16:38,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:38,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2060186654, now seen corresponding path program 1 times [2021-12-21 17:16:38,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:38,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519073960] [2021-12-21 17:16:38,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:38,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 17:16:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 17:16:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 17:16:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 17:16:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-21 17:16:38,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:38,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519073960] [2021-12-21 17:16:38,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519073960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:38,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:38,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:38,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55897059] [2021-12-21 17:16:38,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:38,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:38,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:38,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:38,489 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) [2021-12-21 17:16:38,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:38,769 INFO L93 Difference]: Finished difference Result 4838 states and 7011 transitions. [2021-12-21 17:16:38,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:38,770 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 [2021-12-21 17:16:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:38,797 INFO L225 Difference]: With dead ends: 4838 [2021-12-21 17:16:38,797 INFO L226 Difference]: Without dead ends: 4836 [2021-12-21 17:16:38,804 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 [2021-12-21 17:16:38,804 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 [2021-12-21 17:16:38,805 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] [2021-12-21 17:16:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4836 states. [2021-12-21 17:16:39,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4836 to 4836. [2021-12-21 17:16:39,091 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) [2021-12-21 17:16:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4836 states to 4836 states and 7009 transitions. [2021-12-21 17:16:39,189 INFO L78 Accepts]: Start accepts. Automaton has 4836 states and 7009 transitions. Word has length 96 [2021-12-21 17:16:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:39,190 INFO L470 AbstractCegarLoop]: Abstraction has 4836 states and 7009 transitions. [2021-12-21 17:16:39,190 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) [2021-12-21 17:16:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4836 states and 7009 transitions. [2021-12-21 17:16:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-21 17:16:39,195 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:39,195 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] [2021-12-21 17:16:39,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 17:16:39,195 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)] === [2021-12-21 17:16:39,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:39,196 INFO L85 PathProgramCache]: Analyzing trace with hash -319329983, now seen corresponding path program 1 times [2021-12-21 17:16:39,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:39,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892253491] [2021-12-21 17:16:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:39,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 17:16:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 17:16:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 17:16:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 17:16:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 17:16:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-21 17:16:39,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892253491] [2021-12-21 17:16:39,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892253491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:39,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:39,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:39,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063311515] [2021-12-21 17:16:39,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:39,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:39,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:39,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:39,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:39,372 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) [2021-12-21 17:16:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:39,646 INFO L93 Difference]: Finished difference Result 4842 states and 7014 transitions. [2021-12-21 17:16:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:39,647 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 [2021-12-21 17:16:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:39,674 INFO L225 Difference]: With dead ends: 4842 [2021-12-21 17:16:39,674 INFO L226 Difference]: Without dead ends: 4840 [2021-12-21 17:16:39,679 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 [2021-12-21 17:16:39,681 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 [2021-12-21 17:16:39,681 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] [2021-12-21 17:16:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2021-12-21 17:16:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 4840. [2021-12-21 17:16:39,951 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) [2021-12-21 17:16:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 7012 transitions. [2021-12-21 17:16:39,976 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 7012 transitions. Word has length 101 [2021-12-21 17:16:39,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:39,978 INFO L470 AbstractCegarLoop]: Abstraction has 4840 states and 7012 transitions. [2021-12-21 17:16:39,978 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) [2021-12-21 17:16:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 7012 transitions. [2021-12-21 17:16:39,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-21 17:16:39,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:39,980 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] [2021-12-21 17:16:39,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 17:16:39,980 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)] === [2021-12-21 17:16:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 577805614, now seen corresponding path program 1 times [2021-12-21 17:16:39,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:39,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236361266] [2021-12-21 17:16:39,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:39,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:16:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 17:16:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 17:16:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-21 17:16:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-21 17:16:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-21 17:16:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:16:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-21 17:16:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 17:16:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 17:16:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-21 17:16:40,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:40,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236361266] [2021-12-21 17:16:40,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236361266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:40,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:40,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:40,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037710438] [2021-12-21 17:16:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:40,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:40,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:40,168 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) [2021-12-21 17:16:40,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:40,447 INFO L93 Difference]: Finished difference Result 4846 states and 7017 transitions. [2021-12-21 17:16:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:40,447 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 [2021-12-21 17:16:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:40,467 INFO L225 Difference]: With dead ends: 4846 [2021-12-21 17:16:40,467 INFO L226 Difference]: Without dead ends: 4844 [2021-12-21 17:16:40,470 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 [2021-12-21 17:16:40,471 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 [2021-12-21 17:16:40,471 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] [2021-12-21 17:16:40,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-12-21 17:16:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2021-12-21 17:16:40,754 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) [2021-12-21 17:16:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 7015 transitions. [2021-12-21 17:16:40,779 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 7015 transitions. Word has length 115 [2021-12-21 17:16:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:40,781 INFO L470 AbstractCegarLoop]: Abstraction has 4844 states and 7015 transitions. [2021-12-21 17:16:40,782 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) [2021-12-21 17:16:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 7015 transitions. [2021-12-21 17:16:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-21 17:16:40,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:40,784 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] [2021-12-21 17:16:40,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 17:16:40,784 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)] === [2021-12-21 17:16:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash -350337247, now seen corresponding path program 1 times [2021-12-21 17:16:40,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:40,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074305661] [2021-12-21 17:16:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:40,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 17:16:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 17:16:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 17:16:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 17:16:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 17:16:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 17:16:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:16:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-21 17:16:40,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:40,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074305661] [2021-12-21 17:16:40,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074305661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:40,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:40,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:40,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440676628] [2021-12-21 17:16:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:40,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:40,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:40,961 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) [2021-12-21 17:16:41,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:41,226 INFO L93 Difference]: Finished difference Result 4850 states and 7020 transitions. [2021-12-21 17:16:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:41,227 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 [2021-12-21 17:16:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:41,252 INFO L225 Difference]: With dead ends: 4850 [2021-12-21 17:16:41,252 INFO L226 Difference]: Without dead ends: 4846 [2021-12-21 17:16:41,257 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 [2021-12-21 17:16:41,257 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 [2021-12-21 17:16:41,258 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] [2021-12-21 17:16:41,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4846 states. [2021-12-21 17:16:41,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4846 to 4846. [2021-12-21 17:16:41,584 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) [2021-12-21 17:16:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 7016 transitions. [2021-12-21 17:16:41,610 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 7016 transitions. Word has length 111 [2021-12-21 17:16:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:41,611 INFO L470 AbstractCegarLoop]: Abstraction has 4846 states and 7016 transitions. [2021-12-21 17:16:41,611 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) [2021-12-21 17:16:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 7016 transitions. [2021-12-21 17:16:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 17:16:41,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:41,613 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] [2021-12-21 17:16:41,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 17:16:41,614 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)] === [2021-12-21 17:16:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2020161698, now seen corresponding path program 1 times [2021-12-21 17:16:41,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:41,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606983076] [2021-12-21 17:16:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:41,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 17:16:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:16:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:16:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:16:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:16:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 17:16:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:16:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 17:16:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 17:16:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 17:16:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 17:16:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 17:16:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 17:16:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:16:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:16:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-21 17:16:41,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:41,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606983076] [2021-12-21 17:16:41,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606983076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:41,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:41,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:16:41,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759039120] [2021-12-21 17:16:41,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:41,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:16:41,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:16:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:16:41,831 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) [2021-12-21 17:16:42,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:42,109 INFO L93 Difference]: Finished difference Result 4846 states and 7016 transitions. [2021-12-21 17:16:42,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:16:42,110 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 [2021-12-21 17:16:42,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:42,134 INFO L225 Difference]: With dead ends: 4846 [2021-12-21 17:16:42,135 INFO L226 Difference]: Without dead ends: 4723 [2021-12-21 17:16:42,140 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 [2021-12-21 17:16:42,141 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 [2021-12-21 17:16:42,141 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] [2021-12-21 17:16:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4723 states. [2021-12-21 17:16:42,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4723 to 4723. [2021-12-21 17:16:42,500 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) [2021-12-21 17:16:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6871 transitions. [2021-12-21 17:16:42,524 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6871 transitions. Word has length 116 [2021-12-21 17:16:42,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:42,524 INFO L470 AbstractCegarLoop]: Abstraction has 4723 states and 6871 transitions. [2021-12-21 17:16:42,525 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) [2021-12-21 17:16:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6871 transitions. [2021-12-21 17:16:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-21 17:16:42,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:42,530 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] [2021-12-21 17:16:42,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-21 17:16:42,530 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)] === [2021-12-21 17:16:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 550778797, now seen corresponding path program 1 times [2021-12-21 17:16:42,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:42,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957725925] [2021-12-21 17:16:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:42,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:16:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-21 17:16:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 17:16:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:16:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:16:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:16:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:16:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 17:16:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:16:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:16:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:16:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:16:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-21 17:16:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-21 17:16:42,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:42,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957725925] [2021-12-21 17:16:42,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957725925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:42,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:42,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:16:42,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174535575] [2021-12-21 17:16:42,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:42,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:16:42,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:42,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:16:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:16:42,882 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) [2021-12-21 17:16:48,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:48,861 INFO L93 Difference]: Finished difference Result 7115 states and 10325 transitions. [2021-12-21 17:16:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:16:48,862 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 [2021-12-21 17:16:48,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:48,891 INFO L225 Difference]: With dead ends: 7115 [2021-12-21 17:16:48,892 INFO L226 Difference]: Without dead ends: 4759 [2021-12-21 17:16:48,910 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 [2021-12-21 17:16:48,911 INFO L933 BasicCegarLoop]: 3982 mSDtfsCounter, 2325 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 6513 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1772 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:16:48,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2901 Valid, 6513 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1772 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-21 17:16:48,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2021-12-21 17:16:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4723. [2021-12-21 17:16:49,391 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) [2021-12-21 17:16:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6830 transitions. [2021-12-21 17:16:49,416 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6830 transitions. Word has length 222 [2021-12-21 17:16:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:49,416 INFO L470 AbstractCegarLoop]: Abstraction has 4723 states and 6830 transitions. [2021-12-21 17:16:49,417 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) [2021-12-21 17:16:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6830 transitions. [2021-12-21 17:16:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-21 17:16:49,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:49,421 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] [2021-12-21 17:16:49,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-21 17:16:49,422 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)] === [2021-12-21 17:16:49,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1885780437, now seen corresponding path program 1 times [2021-12-21 17:16:49,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:49,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984943248] [2021-12-21 17:16:49,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:49,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:16:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-21 17:16:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 17:16:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:16:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:16:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:16:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:16:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 17:16:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:16:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:16:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:16:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:16:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-21 17:16:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-21 17:16:49,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:49,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984943248] [2021-12-21 17:16:49,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984943248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:49,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:49,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:16:49,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874611653] [2021-12-21 17:16:49,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:49,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:16:49,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:16:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:16:49,765 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) [2021-12-21 17:16:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:16:55,949 INFO L93 Difference]: Finished difference Result 4755 states and 6882 transitions. [2021-12-21 17:16:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:16:55,950 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 [2021-12-21 17:16:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:16:55,982 INFO L225 Difference]: With dead ends: 4755 [2021-12-21 17:16:55,982 INFO L226 Difference]: Without dead ends: 4753 [2021-12-21 17:16:55,987 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 [2021-12-21 17:16:55,988 INFO L933 BasicCegarLoop]: 2753 mSDtfsCounter, 1819 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 1528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 7644 SdHoareTripleChecker+Invalid, 6485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1528 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:16:55,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2256 Valid, 7644 Invalid, 6485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1528 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-21 17:16:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4753 states. [2021-12-21 17:16:56,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4753 to 4721. [2021-12-21 17:16:56,404 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) [2021-12-21 17:16:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4721 states to 4721 states and 6827 transitions. [2021-12-21 17:16:56,429 INFO L78 Accepts]: Start accepts. Automaton has 4721 states and 6827 transitions. Word has length 222 [2021-12-21 17:16:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:16:56,429 INFO L470 AbstractCegarLoop]: Abstraction has 4721 states and 6827 transitions. [2021-12-21 17:16:56,429 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) [2021-12-21 17:16:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4721 states and 6827 transitions. [2021-12-21 17:16:56,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-21 17:16:56,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:16:56,436 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] [2021-12-21 17:16:56,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-21 17:16:56,437 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)] === [2021-12-21 17:16:56,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:16:56,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2093109281, now seen corresponding path program 1 times [2021-12-21 17:16:56,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:16:56,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90476042] [2021-12-21 17:16:56,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:16:56,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:16:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 17:16:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:16:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-21 17:16:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 17:16:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 17:16:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 17:16:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:16:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:16:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:16:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:16:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 17:16:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:16:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 17:16:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:16:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:16:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:16:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:16:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-21 17:16:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-21 17:16:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 17:16:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 17:16:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-21 17:16:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:16:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:16:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2021-12-21 17:16:56,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:16:56,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90476042] [2021-12-21 17:16:56,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90476042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:16:56,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:16:56,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 17:16:56,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173259293] [2021-12-21 17:16:56,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:16:56,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 17:16:56,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:16:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 17:16:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:16:56,757 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) [2021-12-21 17:17:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:17:06,501 INFO L93 Difference]: Finished difference Result 5121 states and 7446 transitions. [2021-12-21 17:17:06,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 17:17:06,501 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 [2021-12-21 17:17:06,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:17:06,503 INFO L225 Difference]: With dead ends: 5121 [2021-12-21 17:17:06,503 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 17:17:06,528 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 [2021-12-21 17:17:06,529 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 3170 mSDsluCounter, 4330 mSDsCounter, 0 mSdLazyCounter, 6140 mSolverCounterSat, 3657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 6496 SdHoareTripleChecker+Invalid, 9797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3657 IncrementalHoareTripleChecker+Valid, 6140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:17:06,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3367 Valid, 6496 Invalid, 9797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3657 Valid, 6140 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2021-12-21 17:17:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 17:17:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 17:17:06,530 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) [2021-12-21 17:17:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 17:17:06,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 255 [2021-12-21 17:17:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:17:06,532 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 17:17:06,533 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) [2021-12-21 17:17:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 17:17:06,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 17:17:06,535 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-21 17:17:06,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-12-21 17:17:06,536 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) [2021-12-21 17:17:06,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-21 17:17:06,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.