./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:25:56,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:25:56,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:25:56,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:25:56,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:25:56,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:25:56,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:25:56,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:25:56,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:25:56,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:25:56,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:25:56,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:25:56,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:25:56,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:25:56,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:25:56,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:25:56,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:25:56,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:25:56,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:25:56,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:25:56,338 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:25:56,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:25:56,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:25:56,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:25:56,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:25:56,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:25:56,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:25:56,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:25:56,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:25:56,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:25:56,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:25:56,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:25:56,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:25:56,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:25:56,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:25:56,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:25:56,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:25:56,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:25:56,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:25:56,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:25:56,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:25:56,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:25:56,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:25:56,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:25:56,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:25:56,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:25:56,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:25:56,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:25:56,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:25:56,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:25:56,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:25:56,413 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:25:56,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:25:56,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:25:56,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:25:56,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:25:56,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:25:56,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:25:56,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:25:56,415 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:25:56,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:25:56,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:25:56,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:25:56,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:25:56,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:25:56,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:25:56,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:25:56,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:25:56,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:25:56,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:25:56,419 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:25:56,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:25:56,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:25:56,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2022-07-12 16:25:56,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:25:56,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:25:56,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:25:56,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:25:56,763 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:25:56,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-07-12 16:25:56,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f83c7137b/6412e08130fc427589afee78205c65b9/FLAG00c4a5b47 [2022-07-12 16:25:57,792 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:25:57,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-07-12 16:25:57,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f83c7137b/6412e08130fc427589afee78205c65b9/FLAG00c4a5b47 [2022-07-12 16:25:58,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f83c7137b/6412e08130fc427589afee78205c65b9 [2022-07-12 16:25:58,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:25:58,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:25:58,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:25:58,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:25:58,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:25:58,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:25:58" (1/1) ... [2022-07-12 16:25:58,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152e880d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:58, skipping insertion in model container [2022-07-12 16:25:58,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:25:58" (1/1) ... [2022-07-12 16:25:58,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:25:58,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:26:03,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2022-07-12 16:26:03,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2022-07-12 16:26:03,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2022-07-12 16:26:03,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2022-07-12 16:26:03,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:26:03,136 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:26:03,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2022-07-12 16:26:03,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2022-07-12 16:26:03,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2022-07-12 16:26:03,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2022-07-12 16:26:03,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:26:03,764 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:26:03,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03 WrapperNode [2022-07-12 16:26:03,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:26:03,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:26:03,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:26:03,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:26:03,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:03,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,148 INFO L137 Inliner]: procedures = 559, calls = 2869, calls flagged for inlining = 295, calls inlined = 261, statements flattened = 7591 [2022-07-12 16:26:04,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:26:04,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:26:04,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:26:04,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:26:04,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:26:04,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:26:04,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:26:04,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:26:04,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (1/1) ... [2022-07-12 16:26:04,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:26:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:26:04,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 16:26:04,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 16:26:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-12 16:26:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-12 16:26:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:26:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:26:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 16:26:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 16:26:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 16:26:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 16:26:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:26:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:26:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 16:26:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 16:26:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:26:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:26:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 16:26:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 16:26:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 16:26:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 16:26:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-07-12 16:26:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-07-12 16:26:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-07-12 16:26:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-07-12 16:26:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 16:26:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 16:26:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 16:26:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 16:26:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:26:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:26:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 16:26:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 16:26:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 16:26:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 16:26:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:26:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:26:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 16:26:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 16:26:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:26:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-07-12 16:26:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-07-12 16:26:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:26:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:26:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 16:26:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 16:26:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 16:26:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-07-12 16:26:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-07-12 16:26:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 16:26:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 16:26:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-12 16:26:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-12 16:26:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 16:26:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:26:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:26:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-07-12 16:26:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-07-12 16:26:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 16:26:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:26:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:26:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:26:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:26:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-07-12 16:26:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-07-12 16:26:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:26:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:26:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:26:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:26:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:26:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:26:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 16:26:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 16:26:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 16:26:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 16:26:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-07-12 16:26:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-07-12 16:26:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-12 16:26:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-12 16:26:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2022-07-12 16:26:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2022-07-12 16:26:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:26:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:26:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:26:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 16:26:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 16:26:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 16:26:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 16:26:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-07-12 16:26:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-07-12 16:26:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-12 16:26:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-12 16:26:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-12 16:26:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-12 16:26:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-07-12 16:26:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-07-12 16:26:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:26:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 16:26:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 16:26:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:26:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:26:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 16:26:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 16:26:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:26:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 16:26:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:26:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:26:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-07-12 16:26:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-07-12 16:26:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-07-12 16:26:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-07-12 16:26:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 16:26:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 16:26:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-07-12 16:26:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-07-12 16:26:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 16:26:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 16:26:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-12 16:26:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-12 16:26:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:26:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:26:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 16:26:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 16:26:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 16:26:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 16:26:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-07-12 16:26:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-07-12 16:26:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-07-12 16:26:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-07-12 16:26:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 16:26:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 16:26:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-07-12 16:26:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-07-12 16:26:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 16:26:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 16:26:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:26:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:26:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 16:26:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 16:26:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:26:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:26:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:26:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:26:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-07-12 16:26:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-07-12 16:26:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:26:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:26:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-07-12 16:26:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-07-12 16:26:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-07-12 16:26:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-07-12 16:26:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 16:26:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:26:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:26:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-07-12 16:26:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-07-12 16:26:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-07-12 16:26:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-07-12 16:26:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 16:26:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 16:26:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:26:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:26:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-12 16:26:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-12 16:26:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:26:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:26:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 16:26:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 16:26:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-07-12 16:26:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-07-12 16:26:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-07-12 16:26:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-07-12 16:26:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-07-12 16:26:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-07-12 16:26:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-07-12 16:26:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-07-12 16:26:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 16:26:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 16:26:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:26:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-07-12 16:26:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-07-12 16:26:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 16:26:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 16:26:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:26:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-07-12 16:26:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-07-12 16:26:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:26:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-07-12 16:26:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-07-12 16:26:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-07-12 16:26:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-07-12 16:26:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-12 16:26:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-12 16:26:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:26:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:26:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-07-12 16:26:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-07-12 16:26:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:26:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:26:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-07-12 16:26:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-07-12 16:26:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-12 16:26:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-12 16:26:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 16:26:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 16:26:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-07-12 16:26:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-07-12 16:26:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-07-12 16:26:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-07-12 16:26:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-07-12 16:26:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-07-12 16:26:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-07-12 16:26:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-07-12 16:26:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 16:26:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 16:26:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 16:26:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 16:26:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 16:26:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 16:26:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-07-12 16:26:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-07-12 16:26:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 16:26:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 16:26:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-07-12 16:26:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-07-12 16:26:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-07-12 16:26:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-07-12 16:26:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-12 16:26:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-12 16:26:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:26:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:26:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 16:26:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-07-12 16:26:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-07-12 16:26:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:26:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:26:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 16:26:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 16:26:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 16:26:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 16:26:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-07-12 16:26:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-07-12 16:26:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-07-12 16:26:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-07-12 16:26:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-12 16:26:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-12 16:26:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-07-12 16:26:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-07-12 16:26:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:26:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:26:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 16:26:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 16:26:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 16:26:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 16:26:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 16:26:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 16:26:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-12 16:26:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-12 16:26:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 16:26:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-12 16:26:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-12 16:26:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-12 16:26:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-12 16:26:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:26:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:26:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 16:26:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 16:26:05,626 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:26:05,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:26:05,926 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:26:14,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:26:14,520 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:26:14,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:26:14,544 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-12 16:26:14,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:26:14 BoogieIcfgContainer [2022-07-12 16:26:14,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:26:14,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:26:14,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:26:14,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:26:14,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:25:58" (1/3) ... [2022-07-12 16:26:14,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222f41b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:26:14, skipping insertion in model container [2022-07-12 16:26:14,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:26:03" (2/3) ... [2022-07-12 16:26:14,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222f41b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:26:14, skipping insertion in model container [2022-07-12 16:26:14,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:26:14" (3/3) ... [2022-07-12 16:26:14,558 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-07-12 16:26:14,570 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:26:14,570 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 16:26:14,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:26:14,695 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6a32d5cc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70421279 [2022-07-12 16:26:14,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 16:26:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 2763 states, 1948 states have (on average 1.3275154004106777) internal successors, (2586), 1990 states have internal predecessors, (2586), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) [2022-07-12 16:26:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-12 16:26:14,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:14,740 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:14,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1141530011, now seen corresponding path program 1 times [2022-07-12 16:26:14,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:26:14,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048379735] [2022-07-12 16:26:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:26:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:26:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:26:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:26:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:26:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:26:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:26:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:26:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:26:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:26:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:26:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:26:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:26:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:26:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:26:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 16:26:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-12 16:26:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:26:15,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048379735] [2022-07-12 16:26:15,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048379735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:15,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:15,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921317684] [2022-07-12 16:26:15,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:15,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:26:15,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:26:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:26:15,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:26:15,909 INFO L87 Difference]: Start difference. First operand has 2763 states, 1948 states have (on average 1.3275154004106777) internal successors, (2586), 1990 states have internal predecessors, (2586), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 16:26:22,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:22,906 INFO L93 Difference]: Finished difference Result 8177 states and 12027 transitions. [2022-07-12 16:26:22,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:26:22,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2022-07-12 16:26:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:22,966 INFO L225 Difference]: With dead ends: 8177 [2022-07-12 16:26:22,966 INFO L226 Difference]: Without dead ends: 5433 [2022-07-12 16:26:22,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:26:22,995 INFO L413 NwaCegarLoop]: 4079 mSDtfsCounter, 4641 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 1952 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5255 SdHoareTripleChecker+Valid, 7967 SdHoareTripleChecker+Invalid, 4916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1952 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:22,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5255 Valid, 7967 Invalid, 4916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1952 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-12 16:26:23,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2022-07-12 16:26:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 5277. [2022-07-12 16:26:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 3730 states have (on average 1.2916890080428955) internal successors, (4818), 3807 states have internal predecessors, (4818), 1304 states have call successors, (1304), 241 states have call predecessors, (1304), 240 states have return successors, (1300), 1275 states have call predecessors, (1300), 1300 states have call successors, (1300) [2022-07-12 16:26:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 7422 transitions. [2022-07-12 16:26:23,379 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 7422 transitions. Word has length 171 [2022-07-12 16:26:23,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:23,382 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 7422 transitions. [2022-07-12 16:26:23,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 16:26:23,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 7422 transitions. [2022-07-12 16:26:23,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 16:26:23,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:23,393 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:23,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 16:26:23,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:23,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1213757508, now seen corresponding path program 1 times [2022-07-12 16:26:23,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:26:23,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725057061] [2022-07-12 16:26:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:26:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:26:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:26:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:26:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:26:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:26:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:26:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:26:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:26:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:26:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:26:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:26:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:26:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:26:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:26:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 16:26:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 16:26:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-12 16:26:23,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:26:23,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725057061] [2022-07-12 16:26:23,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725057061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:23,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:23,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:23,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19889365] [2022-07-12 16:26:23,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:23,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:26:23,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:26:23,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:26:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:26:23,964 INFO L87 Difference]: Start difference. First operand 5277 states and 7422 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 16:26:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:30,783 INFO L93 Difference]: Finished difference Result 15933 states and 22530 transitions. [2022-07-12 16:26:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:26:30,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 175 [2022-07-12 16:26:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:30,867 INFO L225 Difference]: With dead ends: 15933 [2022-07-12 16:26:30,867 INFO L226 Difference]: Without dead ends: 10687 [2022-07-12 16:26:30,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:26:30,902 INFO L413 NwaCegarLoop]: 4346 mSDtfsCounter, 4668 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 2911 mSolverCounterSat, 1972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 8478 SdHoareTripleChecker+Invalid, 4883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1972 IncrementalHoareTripleChecker+Valid, 2911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:30,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5275 Valid, 8478 Invalid, 4883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1972 Valid, 2911 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-12 16:26:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2022-07-12 16:26:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 10511. [2022-07-12 16:26:31,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10511 states, 7459 states have (on average 1.293202842204049) internal successors, (9646), 7631 states have internal predecessors, (9646), 2557 states have call successors, (2557), 480 states have call predecessors, (2557), 492 states have return successors, (2641), 2491 states have call predecessors, (2641), 2553 states have call successors, (2641) [2022-07-12 16:26:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10511 states to 10511 states and 14844 transitions. [2022-07-12 16:26:31,494 INFO L78 Accepts]: Start accepts. Automaton has 10511 states and 14844 transitions. Word has length 175 [2022-07-12 16:26:31,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:31,496 INFO L495 AbstractCegarLoop]: Abstraction has 10511 states and 14844 transitions. [2022-07-12 16:26:31,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 16:26:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 10511 states and 14844 transitions. [2022-07-12 16:26:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-12 16:26:31,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:31,501 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:31,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 16:26:31,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1416040930, now seen corresponding path program 1 times [2022-07-12 16:26:31,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:26:31,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926410250] [2022-07-12 16:26:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:31,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:26:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:26:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:26:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:26:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:26:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:26:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:26:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:26:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:26:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:26:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:26:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:26:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:26:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:26:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:26:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 16:26:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-12 16:26:31,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:26:31,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926410250] [2022-07-12 16:26:31,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926410250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:31,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:31,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738652825] [2022-07-12 16:26:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:26:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:26:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:26:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:26:31,967 INFO L87 Difference]: Start difference. First operand 10511 states and 14844 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 16:26:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:37,710 INFO L93 Difference]: Finished difference Result 29129 states and 41078 transitions. [2022-07-12 16:26:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:26:37,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 174 [2022-07-12 16:26:37,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:37,854 INFO L225 Difference]: With dead ends: 29129 [2022-07-12 16:26:37,855 INFO L226 Difference]: Without dead ends: 18649 [2022-07-12 16:26:37,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:26:37,905 INFO L413 NwaCegarLoop]: 3921 mSDtfsCounter, 3817 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 2862 mSolverCounterSat, 1807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 7780 SdHoareTripleChecker+Invalid, 4669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1807 IncrementalHoareTripleChecker+Valid, 2862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:37,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 7780 Invalid, 4669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1807 Valid, 2862 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 16:26:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18649 states. [2022-07-12 16:26:38,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18649 to 18223. [2022-07-12 16:26:38,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18223 states, 12921 states have (on average 1.2941722776874856) internal successors, (16722), 13209 states have internal predecessors, (16722), 4357 states have call successors, (4357), 934 states have call predecessors, (4357), 942 states have return successors, (4491), 4213 states have call predecessors, (4491), 4353 states have call successors, (4491) [2022-07-12 16:26:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18223 states to 18223 states and 25570 transitions. [2022-07-12 16:26:38,677 INFO L78 Accepts]: Start accepts. Automaton has 18223 states and 25570 transitions. Word has length 174 [2022-07-12 16:26:38,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:38,679 INFO L495 AbstractCegarLoop]: Abstraction has 18223 states and 25570 transitions. [2022-07-12 16:26:38,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 16:26:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 18223 states and 25570 transitions. [2022-07-12 16:26:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-12 16:26:38,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:38,682 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:38,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 16:26:38,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:38,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:38,683 INFO L85 PathProgramCache]: Analyzing trace with hash -680148155, now seen corresponding path program 1 times [2022-07-12 16:26:38,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:26:38,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515373214] [2022-07-12 16:26:38,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:38,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:26:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:26:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:26:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:26:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:26:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:26:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:26:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:26:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:26:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:26:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:26:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:26:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:26:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:26:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:26:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:26:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-12 16:26:39,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:26:39,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515373214] [2022-07-12 16:26:39,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515373214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:39,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:39,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:39,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001792205] [2022-07-12 16:26:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:39,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:26:39,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:26:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:26:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:26:39,179 INFO L87 Difference]: Start difference. First operand 18223 states and 25570 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 16:26:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:44,901 INFO L93 Difference]: Finished difference Result 42082 states and 58667 transitions. [2022-07-12 16:26:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:26:44,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 177 [2022-07-12 16:26:44,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:45,029 INFO L225 Difference]: With dead ends: 42082 [2022-07-12 16:26:45,029 INFO L226 Difference]: Without dead ends: 23890 [2022-07-12 16:26:45,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:26:45,111 INFO L413 NwaCegarLoop]: 6278 mSDtfsCounter, 3768 mSDsluCounter, 5067 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 11345 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:45,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4356 Valid, 11345 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 16:26:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23890 states. [2022-07-12 16:26:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23890 to 23215. [2022-07-12 16:26:45,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23215 states, 16478 states have (on average 1.2869887122223571) internal successors, (21207), 16815 states have internal predecessors, (21207), 5343 states have call successors, (5343), 1397 states have call predecessors, (5343), 1391 states have return successors, (5456), 5138 states have call predecessors, (5456), 5339 states have call successors, (5456) [2022-07-12 16:26:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23215 states to 23215 states and 32006 transitions. [2022-07-12 16:26:45,996 INFO L78 Accepts]: Start accepts. Automaton has 23215 states and 32006 transitions. Word has length 177 [2022-07-12 16:26:45,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:45,997 INFO L495 AbstractCegarLoop]: Abstraction has 23215 states and 32006 transitions. [2022-07-12 16:26:45,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 16:26:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23215 states and 32006 transitions. [2022-07-12 16:26:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-12 16:26:46,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:46,004 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:46,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 16:26:46,005 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:46,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1201033793, now seen corresponding path program 1 times [2022-07-12 16:26:46,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:26:46,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324867473] [2022-07-12 16:26:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:46,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:26:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:26:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:26:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:26:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:26:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:26:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:26:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:26:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:26:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:26:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:26:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:26:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:26:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:26:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:26:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:26:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:26:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:26:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:26:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:26:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:26:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 16:26:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-12 16:26:46,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:26:46,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324867473] [2022-07-12 16:26:46,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324867473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:46,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:46,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:46,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736814911] [2022-07-12 16:26:46,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:46,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:26:46,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:26:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:26:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:26:46,685 INFO L87 Difference]: Start difference. First operand 23215 states and 32006 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 16:26:54,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:54,816 INFO L93 Difference]: Finished difference Result 70305 states and 97167 transitions. [2022-07-12 16:26:54,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:26:54,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 236 [2022-07-12 16:26:54,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:55,274 INFO L225 Difference]: With dead ends: 70305 [2022-07-12 16:26:55,274 INFO L226 Difference]: Without dead ends: 47376 [2022-07-12 16:26:55,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:26:55,377 INFO L413 NwaCegarLoop]: 4840 mSDtfsCounter, 4603 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 1859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5226 SdHoareTripleChecker+Valid, 9218 SdHoareTripleChecker+Invalid, 4868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1859 IncrementalHoareTripleChecker+Valid, 3009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:55,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5226 Valid, 9218 Invalid, 4868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1859 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-12 16:26:55,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47376 states. [2022-07-12 16:26:56,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47376 to 46010. [2022-07-12 16:26:56,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46010 states, 32645 states have (on average 1.2869658446929086) internal successors, (42013), 33329 states have internal predecessors, (42013), 10585 states have call successors, (10585), 2788 states have call predecessors, (10585), 2777 states have return successors, (10851), 10164 states have call predecessors, (10851), 10581 states have call successors, (10851) [2022-07-12 16:26:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46010 states to 46010 states and 63449 transitions. [2022-07-12 16:26:57,174 INFO L78 Accepts]: Start accepts. Automaton has 46010 states and 63449 transitions. Word has length 236 [2022-07-12 16:26:57,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:57,177 INFO L495 AbstractCegarLoop]: Abstraction has 46010 states and 63449 transitions. [2022-07-12 16:26:57,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 16:26:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 46010 states and 63449 transitions. [2022-07-12 16:26:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-12 16:26:57,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:57,182 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 16:26:57,185 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:57,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1554122175, now seen corresponding path program 1 times [2022-07-12 16:26:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:26:57,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509093322] [2022-07-12 16:26:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:26:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:26:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:26:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:26:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:26:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:26:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:26:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:26:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:26:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:26:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:26:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:26:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:26:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:26:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:26:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:26:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:26:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:26:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:26:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:26:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:26:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:26:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 16:26:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-12 16:26:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:26:57,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509093322] [2022-07-12 16:26:57,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509093322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:57,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:57,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:57,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819714270] [2022-07-12 16:26:57,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:57,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:26:57,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:26:57,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:26:57,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:26:57,880 INFO L87 Difference]: Start difference. First operand 46010 states and 63449 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 16:27:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:05,129 INFO L93 Difference]: Finished difference Result 119312 states and 165255 transitions. [2022-07-12 16:27:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:27:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 236 [2022-07-12 16:27:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:05,755 INFO L225 Difference]: With dead ends: 119312 [2022-07-12 16:27:05,755 INFO L226 Difference]: Without dead ends: 73588 [2022-07-12 16:27:05,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:27:05,889 INFO L413 NwaCegarLoop]: 5832 mSDtfsCounter, 4026 mSDsluCounter, 4883 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 1582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4626 SdHoareTripleChecker+Valid, 10715 SdHoareTripleChecker+Invalid, 4559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1582 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:05,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4626 Valid, 10715 Invalid, 4559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1582 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-12 16:27:05,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73588 states. [2022-07-12 16:27:08,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73588 to 71688. [2022-07-12 16:27:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71688 states, 50881 states have (on average 1.2871798903323441) internal successors, (65493), 51945 states have internal predecessors, (65493), 16627 states have call successors, (16627), 4180 states have call predecessors, (16627), 4177 states have return successors, (17027), 16040 states have call predecessors, (17027), 16623 states have call successors, (17027) [2022-07-12 16:27:08,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71688 states to 71688 states and 99147 transitions. [2022-07-12 16:27:08,754 INFO L78 Accepts]: Start accepts. Automaton has 71688 states and 99147 transitions. Word has length 236 [2022-07-12 16:27:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:08,755 INFO L495 AbstractCegarLoop]: Abstraction has 71688 states and 99147 transitions. [2022-07-12 16:27:08,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 16:27:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 71688 states and 99147 transitions. [2022-07-12 16:27:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-12 16:27:08,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:08,761 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:08,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 16:27:08,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:27:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1413573565, now seen corresponding path program 1 times [2022-07-12 16:27:08,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:27:08,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918305118] [2022-07-12 16:27:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:27:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:27:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:27:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:27:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:27:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:27:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:27:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:27:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:27:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:27:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:27:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:27:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:27:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:27:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:27:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:27:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:27:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:27:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:27:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:27:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:27:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 16:27:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-12 16:27:09,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:27:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918305118] [2022-07-12 16:27:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918305118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:27:09,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:27:09,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:27:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160642218] [2022-07-12 16:27:09,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:09,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:27:09,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:27:09,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:27:09,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:27:09,702 INFO L87 Difference]: Start difference. First operand 71688 states and 99147 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 16:27:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:16,559 INFO L93 Difference]: Finished difference Result 74104 states and 102654 transitions. [2022-07-12 16:27:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 16:27:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 236 [2022-07-12 16:27:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:16,994 INFO L225 Difference]: With dead ends: 74104 [2022-07-12 16:27:16,994 INFO L226 Difference]: Without dead ends: 74102 [2022-07-12 16:27:17,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:27:17,031 INFO L413 NwaCegarLoop]: 3611 mSDtfsCounter, 3904 mSDsluCounter, 6248 mSDsCounter, 0 mSdLazyCounter, 3906 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4327 SdHoareTripleChecker+Valid, 9859 SdHoareTripleChecker+Invalid, 5244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 3906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:17,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4327 Valid, 9859 Invalid, 5244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 3906 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 16:27:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74102 states. [2022-07-12 16:27:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74102 to 72204. [2022-07-12 16:27:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72204 states, 51220 states have (on average 1.2862163217493168) internal successors, (65880), 52316 states have internal predecessors, (65880), 16691 states have call successors, (16691), 4293 states have call predecessors, (16691), 4290 states have return successors, (17091), 16104 states have call predecessors, (17091), 16687 states have call successors, (17091) [2022-07-12 16:27:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72204 states to 72204 states and 99662 transitions. [2022-07-12 16:27:19,653 INFO L78 Accepts]: Start accepts. Automaton has 72204 states and 99662 transitions. Word has length 236 [2022-07-12 16:27:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:19,654 INFO L495 AbstractCegarLoop]: Abstraction has 72204 states and 99662 transitions. [2022-07-12 16:27:19,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 16:27:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 72204 states and 99662 transitions. [2022-07-12 16:27:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-12 16:27:19,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:19,661 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2022-07-12 16:27:19,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 16:27:19,662 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:27:19,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:19,662 INFO L85 PathProgramCache]: Analyzing trace with hash -424070927, now seen corresponding path program 1 times [2022-07-12 16:27:19,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:27:19,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161432597] [2022-07-12 16:27:19,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:27:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:27:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:27:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:27:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:27:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:27:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:27:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:27:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:27:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:27:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:27:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:27:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:27:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:27:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:27:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:27:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:27:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:27:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:27:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:27:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:27:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-12 16:27:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 16:27:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 16:27:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-12 16:27:20,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:27:20,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161432597] [2022-07-12 16:27:20,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161432597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:27:20,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:27:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 16:27:20,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920642219] [2022-07-12 16:27:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:20,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:27:20,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:27:20,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:27:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:27:20,238 INFO L87 Difference]: Start difference. First operand 72204 states and 99662 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-12 16:27:33,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:27:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:44,640 INFO L93 Difference]: Finished difference Result 174227 states and 241330 transitions. [2022-07-12 16:27:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:27:44,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 244 [2022-07-12 16:27:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:45,125 INFO L225 Difference]: With dead ends: 174227 [2022-07-12 16:27:45,125 INFO L226 Difference]: Without dead ends: 102309 [2022-07-12 16:27:45,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 16:27:45,363 INFO L413 NwaCegarLoop]: 6826 mSDtfsCounter, 4401 mSDsluCounter, 6486 mSDsCounter, 0 mSdLazyCounter, 6890 mSolverCounterSat, 2552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 13312 SdHoareTripleChecker+Invalid, 9442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2552 IncrementalHoareTripleChecker+Valid, 6890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:45,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4880 Valid, 13312 Invalid, 9442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2552 Valid, 6890 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2022-07-12 16:27:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102309 states. [2022-07-12 16:27:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102309 to 94137. [2022-07-12 16:27:49,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94137 states, 66789 states have (on average 1.286738834239171) internal successors, (85940), 68228 states have internal predecessors, (85940), 21837 states have call successors, (21837), 5495 states have call predecessors, (21837), 5508 states have return successors, (22387), 21103 states have call predecessors, (22387), 21833 states have call successors, (22387) [2022-07-12 16:27:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94137 states to 94137 states and 130164 transitions. [2022-07-12 16:27:49,883 INFO L78 Accepts]: Start accepts. Automaton has 94137 states and 130164 transitions. Word has length 244 [2022-07-12 16:27:49,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:49,884 INFO L495 AbstractCegarLoop]: Abstraction has 94137 states and 130164 transitions. [2022-07-12 16:27:49,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-12 16:27:49,884 INFO L276 IsEmpty]: Start isEmpty. Operand 94137 states and 130164 transitions. [2022-07-12 16:27:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-12 16:27:49,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:49,891 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:49,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 16:27:49,891 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:27:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:49,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1447062017, now seen corresponding path program 1 times [2022-07-12 16:27:49,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:27:49,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558732912] [2022-07-12 16:27:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:49,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:27:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:27:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:27:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:27:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:27:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:27:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:27:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:27:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:27:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:27:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:27:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:27:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:27:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:27:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:27:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:27:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:27:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:27:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:27:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:27:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:27:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:27:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 16:27:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 16:27:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-12 16:27:50,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:27:50,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558732912] [2022-07-12 16:27:50,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558732912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:27:50,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:27:50,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:27:50,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107317449] [2022-07-12 16:27:50,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:50,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:27:50,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:27:50,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:27:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:27:50,444 INFO L87 Difference]: Start difference. First operand 94137 states and 130164 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 16:27:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:57,946 INFO L93 Difference]: Finished difference Result 96541 states and 133958 transitions. [2022-07-12 16:27:57,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:27:57,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 241 [2022-07-12 16:27:57,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:58,398 INFO L225 Difference]: With dead ends: 96541 [2022-07-12 16:27:58,398 INFO L226 Difference]: Without dead ends: 96539 [2022-07-12 16:27:58,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:27:58,450 INFO L413 NwaCegarLoop]: 3617 mSDtfsCounter, 3877 mSDsluCounter, 6257 mSDsCounter, 0 mSdLazyCounter, 3848 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4291 SdHoareTripleChecker+Valid, 9874 SdHoareTripleChecker+Invalid, 5190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 3848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:58,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4291 Valid, 9874 Invalid, 5190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 3848 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 16:27:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96539 states. [2022-07-12 16:28:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96539 to 94141. [2022-07-12 16:28:02,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94141 states, 66792 states have (on average 1.286725955204216) internal successors, (85943), 68231 states have internal predecessors, (85943), 21837 states have call successors, (21837), 5496 states have call predecessors, (21837), 5509 states have return successors, (22387), 21103 states have call predecessors, (22387), 21833 states have call successors, (22387) [2022-07-12 16:28:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94141 states to 94141 states and 130167 transitions. [2022-07-12 16:28:03,131 INFO L78 Accepts]: Start accepts. Automaton has 94141 states and 130167 transitions. Word has length 241 [2022-07-12 16:28:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:03,132 INFO L495 AbstractCegarLoop]: Abstraction has 94141 states and 130167 transitions. [2022-07-12 16:28:03,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 16:28:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 94141 states and 130167 transitions. [2022-07-12 16:28:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-07-12 16:28:03,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:03,140 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:28:03,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 16:28:03,140 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:03,141 INFO L85 PathProgramCache]: Analyzing trace with hash -789474621, now seen corresponding path program 1 times [2022-07-12 16:28:03,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:28:03,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178717814] [2022-07-12 16:28:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:03,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:28:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:28:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:28:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:28:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:28:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:28:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:28:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:28:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:28:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:28:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:28:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:28:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:28:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:28:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:28:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:28:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:28:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:28:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:28:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:28:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:28:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 16:28:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 16:28:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 16:28:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2022-07-12 16:28:03,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:28:03,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178717814] [2022-07-12 16:28:03,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178717814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:03,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:03,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:28:03,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933014393] [2022-07-12 16:28:03,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:03,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:28:03,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:28:03,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:28:03,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:28:03,687 INFO L87 Difference]: Start difference. First operand 94141 states and 130167 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 16:28:11,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:11,496 INFO L93 Difference]: Finished difference Result 96545 states and 133961 transitions. [2022-07-12 16:28:11,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:28:11,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 246 [2022-07-12 16:28:11,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:11,859 INFO L225 Difference]: With dead ends: 96545 [2022-07-12 16:28:11,859 INFO L226 Difference]: Without dead ends: 96543 [2022-07-12 16:28:11,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:28:11,912 INFO L413 NwaCegarLoop]: 3614 mSDtfsCounter, 3877 mSDsluCounter, 6248 mSDsCounter, 0 mSdLazyCounter, 3848 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4294 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 5189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 3848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:11,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4294 Valid, 9862 Invalid, 5189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 3848 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 16:28:11,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96543 states. [2022-07-12 16:28:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96543 to 94145. [2022-07-12 16:28:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94145 states, 66795 states have (on average 1.2867130773261473) internal successors, (85946), 68234 states have internal predecessors, (85946), 21837 states have call successors, (21837), 5497 states have call predecessors, (21837), 5510 states have return successors, (22387), 21103 states have call predecessors, (22387), 21833 states have call successors, (22387) [2022-07-12 16:28:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94145 states to 94145 states and 130170 transitions. [2022-07-12 16:28:16,147 INFO L78 Accepts]: Start accepts. Automaton has 94145 states and 130170 transitions. Word has length 246 [2022-07-12 16:28:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:16,148 INFO L495 AbstractCegarLoop]: Abstraction has 94145 states and 130170 transitions. [2022-07-12 16:28:16,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 16:28:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 94145 states and 130170 transitions. [2022-07-12 16:28:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-12 16:28:16,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:16,157 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:28:16,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 16:28:16,157 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:16,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash -371021055, now seen corresponding path program 1 times [2022-07-12 16:28:16,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:28:16,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333866094] [2022-07-12 16:28:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:16,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:28:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:28:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:28:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:28:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:28:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:28:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:28:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:28:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:28:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:28:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 16:28:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 16:28:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 16:28:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 16:28:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 16:28:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:28:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 16:28:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:28:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:28:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:16,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:28:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 16:28:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 16:28:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 16:28:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 16:28:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 16:28:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 16:28:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2022-07-12 16:28:17,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:28:17,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333866094] [2022-07-12 16:28:17,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333866094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:17,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:17,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:28:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3478553] [2022-07-12 16:28:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:17,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:28:17,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:28:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:28:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:28:17,068 INFO L87 Difference]: Start difference. First operand 94145 states and 130170 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)