./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 14:03:24,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:03:24,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:03:24,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:03:24,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:03:24,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:03:24,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:03:24,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:03:24,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:03:24,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:03:24,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:03:24,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:03:24,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:03:24,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:03:24,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:03:24,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:03:24,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:03:24,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:03:24,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:03:24,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:03:24,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:03:24,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:03:24,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:03:24,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:03:24,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:03:24,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:03:24,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:03:24,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:03:24,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:03:24,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:03:24,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:03:24,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:03:24,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:03:24,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:03:24,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:03:24,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:03:24,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:03:24,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:03:24,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:03:24,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:03:24,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:03:24,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:03:24,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:03:24,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:03:24,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:03:24,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:03:24,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:03:24,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:03:24,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:03:24,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:03:24,533 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:03:24,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:03:24,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:03:24,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:03:24,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:03:24,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:03:24,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:03:24,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:03:24,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:03:24,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:03:24,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:03:24,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:03:24,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:03:24,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:03:24,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:03:24,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:03:24,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:03:24,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2021-12-18 14:03:24,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:03:24,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:03:24,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:03:24,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:03:24,755 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:03:24,756 INFO L432 ainManager$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 [2021-12-18 14:03:24,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7ceb0f9/80af3200cf114f27bf01a1c66bd8bd52/FLAGf0d10175c [2021-12-18 14:03:25,433 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:03:25,434 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 [2021-12-18 14:03:25,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7ceb0f9/80af3200cf114f27bf01a1c66bd8bd52/FLAGf0d10175c [2021-12-18 14:03:25,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7ceb0f9/80af3200cf114f27bf01a1c66bd8bd52 [2021-12-18 14:03:25,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:03:25,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:03:25,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:03:25,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:03:25,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:03:25,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:03:25" (1/1) ... [2021-12-18 14:03:25,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b16761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:25, skipping insertion in model container [2021-12-18 14:03:25,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:03:25" (1/1) ... [2021-12-18 14:03:25,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:03:25,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:03:27,814 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] [2021-12-18 14:03:27,817 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] [2021-12-18 14:03:27,818 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] [2021-12-18 14:03:27,818 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] [2021-12-18 14:03:27,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:03:27,868 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:03:28,118 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] [2021-12-18 14:03:28,118 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] [2021-12-18 14:03:28,118 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] [2021-12-18 14:03:28,119 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] [2021-12-18 14:03:28,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:03:28,314 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:03:28,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28 WrapperNode [2021-12-18 14:03:28,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:03:28,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:03:28,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:03:28,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:03:28,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,567 INFO L137 Inliner]: procedures = 559, calls = 2867, calls flagged for inlining = 295, calls inlined = 261, statements flattened = 7372 [2021-12-18 14:03:28,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:03:28,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:03:28,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:03:28,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:03:28,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:03:28,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:03:28,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:03:28,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:03:28,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (1/1) ... [2021-12-18 14:03:28,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:03:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:03:28,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 14:03:28,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 14:03:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-18 14:03:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-18 14:03:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:03:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:03:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 14:03:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 14:03:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 14:03:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 14:03:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:03:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:03:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 14:03:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 14:03:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:03:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:03:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:03:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:03:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 14:03:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 14:03:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2021-12-18 14:03:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2021-12-18 14:03:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-12-18 14:03:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-12-18 14:03:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:03:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:03:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:03:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:03:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:03:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:03:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:03:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:03:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:03:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:03:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:03:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:03:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 14:03:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 14:03:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:03:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-12-18 14:03:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-12-18 14:03:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:03:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:03:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 14:03:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 14:03:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 14:03:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-12-18 14:03:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-12-18 14:03:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:03:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:03:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-18 14:03:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-18 14:03:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:03:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:03:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:03:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-12-18 14:03:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-12-18 14:03:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:03:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 14:03:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 14:03:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 14:03:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 14:03:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-12-18 14:03:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-12-18 14:03:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 14:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 14:03:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:03:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:03:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 14:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 14:03:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 14:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 14:03:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-12-18 14:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-12-18 14:03:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-18 14:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-18 14:03:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-12-18 14:03:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-12-18 14:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:03:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 14:03:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 14:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 14:03:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 14:03:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-18 14:03:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-18 14:03:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 14:03:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 14:03:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-18 14:03:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-18 14:03:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-12-18 14:03:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-12-18 14:03:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:03:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 14:03:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 14:03:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:03:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:03:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:03:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:03:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:03:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 14:03:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:03:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:03:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-12-18 14:03:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-12-18 14:03:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-12-18 14:03:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-12-18 14:03:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 14:03:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 14:03:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-12-18 14:03:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-12-18 14:03:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 14:03:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 14:03:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 14:03:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 14:03:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:03:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:03:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 14:03:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 14:03:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:03:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-12-18 14:03:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-12-18 14:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-18 14:03:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-18 14:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 14:03:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 14:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-12-18 14:03:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-12-18 14:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-18 14:03:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-18 14:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:03:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 14:03:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 14:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 14:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:03:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-12-18 14:03:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-12-18 14:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:03:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-12-18 14:03:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-12-18 14:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-12-18 14:03:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-12-18 14:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 14:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 14:03:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 14:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-12-18 14:03:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-12-18 14:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-12-18 14:03:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-12-18 14:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 14:03:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 14:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 14:03:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 14:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-18 14:03:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-18 14:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:03:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 14:03:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 14:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-12-18 14:03:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-12-18 14:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-12-18 14:03:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-12-18 14:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-12-18 14:03:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-12-18 14:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-12-18 14:03:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-12-18 14:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 14:03:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 14:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-12-18 14:03:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-12-18 14:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 14:03:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 14:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-12-18 14:03:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-12-18 14:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-12-18 14:03:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-12-18 14:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-12-18 14:03:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-12-18 14:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-18 14:03:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-18 14:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:03:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-12-18 14:03:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-12-18 14:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:03:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-12-18 14:03:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-12-18 14:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-18 14:03:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-18 14:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 14:03:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 14:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-12-18 14:03:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-12-18 14:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-12-18 14:03:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-12-18 14:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-12-18 14:03:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-12-18 14:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-12-18 14:03:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-12-18 14:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 14:03:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 14:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:03:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:03:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-12-18 14:03:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-12-18 14:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:03:28,938 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-12-18 14:03:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-12-18 14:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-12-18 14:03:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-12-18 14:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-18 14:03:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-18 14:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 14:03:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 14:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-12-18 14:03:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-12-18 14:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:03:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 14:03:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 14:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 14:03:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 14:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-12-18 14:03:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-12-18 14:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-12-18 14:03:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-12-18 14:03:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-18 14:03:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-18 14:03:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-12-18 14:03:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-12-18 14:03:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:03:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:03:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 14:03:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 14:03:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 14:03:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 14:03:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 14:03:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 14:03:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-18 14:03:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-18 14:03:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:03:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-18 14:03:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-18 14:03:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-18 14:03:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-18 14:03:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:03:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:03:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-18 14:03:28,947 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-18 14:03:29,710 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:03:29,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:03:29,847 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 14:03:33,850 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 14:03:33,923 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 14:03:33,946 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 14:03:33,947 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-12-18 14:03:33,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:03:33 BoogieIcfgContainer [2021-12-18 14:03:33,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 14:03:33,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 14:03:33,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 14:03:33,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 14:03:33,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:03:25" (1/3) ... [2021-12-18 14:03:33,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394c82ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:03:33, skipping insertion in model container [2021-12-18 14:03:33,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:03:28" (2/3) ... [2021-12-18 14:03:33,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394c82ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:03:33, skipping insertion in model container [2021-12-18 14:03:33,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:03:33" (3/3) ... [2021-12-18 14:03:33,956 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-18 14:03:33,960 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 14:03:33,960 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 14:03:34,044 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 14:03:34,048 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 14:03:34,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 14:03:34,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 2673 states, 1858 states have (on average 1.3003229278794401) internal successors, (2416), 1900 states have internal predecessors, (2416), 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) [2021-12-18 14:03:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-18 14:03:34,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:03:34,103 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:03:34,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:03:34,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:03:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1294892158, now seen corresponding path program 1 times [2021-12-18 14:03:34,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:03:34,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891927993] [2021-12-18 14:03:34,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:03:34,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:03:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:03:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:03:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:03:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:03:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:03:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:03:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:03:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:03:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:03:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:03:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:03:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:03:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:03:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:03:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 14:03:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:34,872 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 14:03:34,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:03:34,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891927993] [2021-12-18 14:03:34,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891927993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:03:34,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:03:34,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:03:34,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197161455] [2021-12-18 14:03:34,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:03:34,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:03:34,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:03:34,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:03:34,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:03:34,910 INFO L87 Difference]: Start difference. First operand has 2673 states, 1858 states have (on average 1.3003229278794401) internal successors, (2416), 1900 states have internal predecessors, (2416), 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) [2021-12-18 14:03:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:03:39,449 INFO L93 Difference]: Finished difference Result 7907 states and 11503 transitions. [2021-12-18 14:03:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:03:39,451 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 [2021-12-18 14:03:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:03:39,501 INFO L225 Difference]: With dead ends: 7907 [2021-12-18 14:03:39,501 INFO L226 Difference]: Without dead ends: 5253 [2021-12-18 14:03:39,524 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:03:39,529 INFO L933 BasicCegarLoop]: 3957 mSDtfsCounter, 4472 mSDsluCounter, 4290 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 1952 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1952 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-18 14:03:39,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5087 Valid, 8247 Invalid, 4294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1952 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-18 14:03:39,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5253 states. [2021-12-18 14:03:39,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5253 to 5097. [2021-12-18 14:03:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 3550 states have (on average 1.287887323943662) internal successors, (4572), 3627 states have internal predecessors, (4572), 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) [2021-12-18 14:03:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 7176 transitions. [2021-12-18 14:03:39,846 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 7176 transitions. Word has length 171 [2021-12-18 14:03:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:03:39,849 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 7176 transitions. [2021-12-18 14:03:39,850 INFO L471 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) [2021-12-18 14:03:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 7176 transitions. [2021-12-18 14:03:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 14:03:39,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:03:39,857 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:03:39,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 14:03:39,858 INFO L402 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)] === [2021-12-18 14:03:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:03:39,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1901454946, now seen corresponding path program 1 times [2021-12-18 14:03:39,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:03:39,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318286269] [2021-12-18 14:03:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:03:39,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:03:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:03:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:03:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:03:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:03:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:03:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:03:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:03:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:03:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:03:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:03:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:03:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:03:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:03:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:03:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 14:03:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 14:03:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 14:03:40,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:03:40,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318286269] [2021-12-18 14:03:40,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318286269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:03:40,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:03:40,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:03:40,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096602582] [2021-12-18 14:03:40,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:03:40,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:03:40,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:03:40,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:03:40,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:03:40,189 INFO L87 Difference]: Start difference. First operand 5097 states and 7176 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) [2021-12-18 14:03:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:03:44,328 INFO L93 Difference]: Finished difference Result 15393 states and 21792 transitions. [2021-12-18 14:03:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:03:44,329 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 [2021-12-18 14:03:44,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:03:44,395 INFO L225 Difference]: With dead ends: 15393 [2021-12-18 14:03:44,395 INFO L226 Difference]: Without dead ends: 10327 [2021-12-18 14:03:44,423 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:03:44,425 INFO L933 BasicCegarLoop]: 4183 mSDtfsCounter, 4499 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 1972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5105 SdHoareTripleChecker+Valid, 8654 SdHoareTripleChecker+Invalid, 4282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1972 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 14:03:44,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5105 Valid, 8654 Invalid, 4282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1972 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 14:03:44,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2021-12-18 14:03:44,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 10151. [2021-12-18 14:03:44,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10151 states, 7099 states have (on average 1.2894773911818567) internal successors, (9154), 7271 states have internal predecessors, (9154), 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) [2021-12-18 14:03:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10151 states to 10151 states and 14352 transitions. [2021-12-18 14:03:44,863 INFO L78 Accepts]: Start accepts. Automaton has 10151 states and 14352 transitions. Word has length 175 [2021-12-18 14:03:44,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:03:44,863 INFO L470 AbstractCegarLoop]: Abstraction has 10151 states and 14352 transitions. [2021-12-18 14:03:44,864 INFO L471 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) [2021-12-18 14:03:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 10151 states and 14352 transitions. [2021-12-18 14:03:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-18 14:03:44,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:03:44,867 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:03:44,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 14:03:44,867 INFO L402 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)] === [2021-12-18 14:03:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:03:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash 821671759, now seen corresponding path program 1 times [2021-12-18 14:03:44,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:03:44,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486179371] [2021-12-18 14:03:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:03:44,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:03:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:03:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:03:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:03:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:03:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:03:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:03:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:03:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:03:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:03:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:03:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:03:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:03:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:03:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:03:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 14:03:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 14:03:45,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:03:45,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486179371] [2021-12-18 14:03:45,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486179371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:03:45,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:03:45,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:03:45,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681723702] [2021-12-18 14:03:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:03:45,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:03:45,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:03:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:03:45,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:03:45,204 INFO L87 Difference]: Start difference. First operand 10151 states and 14352 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) [2021-12-18 14:03:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:03:49,019 INFO L93 Difference]: Finished difference Result 28089 states and 39650 transitions. [2021-12-18 14:03:49,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:03:49,019 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 [2021-12-18 14:03:49,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:03:49,121 INFO L225 Difference]: With dead ends: 28089 [2021-12-18 14:03:49,122 INFO L226 Difference]: Without dead ends: 17969 [2021-12-18 14:03:49,168 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:03:49,170 INFO L933 BasicCegarLoop]: 3800 mSDtfsCounter, 3666 mSDsluCounter, 4251 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 1807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 4059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1807 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:03:49,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 8051 Invalid, 4059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1807 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-18 14:03:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17969 states. [2021-12-18 14:03:49,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17969 to 17543. [2021-12-18 14:03:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17543 states, 12241 states have (on average 1.2896005228331018) internal successors, (15786), 12529 states have internal predecessors, (15786), 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) [2021-12-18 14:03:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17543 states to 17543 states and 24634 transitions. [2021-12-18 14:03:49,765 INFO L78 Accepts]: Start accepts. Automaton has 17543 states and 24634 transitions. Word has length 174 [2021-12-18 14:03:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:03:49,767 INFO L470 AbstractCegarLoop]: Abstraction has 17543 states and 24634 transitions. [2021-12-18 14:03:49,768 INFO L471 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) [2021-12-18 14:03:49,768 INFO L276 IsEmpty]: Start isEmpty. Operand 17543 states and 24634 transitions. [2021-12-18 14:03:49,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-18 14:03:49,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:03:49,770 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:03:49,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 14:03:49,771 INFO L402 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)] === [2021-12-18 14:03:49,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:03:49,771 INFO L85 PathProgramCache]: Analyzing trace with hash 999564978, now seen corresponding path program 1 times [2021-12-18 14:03:49,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:03:49,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173231496] [2021-12-18 14:03:49,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:03:49,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:03:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:03:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:03:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:03:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:03:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:03:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:03:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:03:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:03:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:03:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:03:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:03:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:03:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:03:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:03:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 14:03:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 14:03:50,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:03:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173231496] [2021-12-18 14:03:50,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173231496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:03:50,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:03:50,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:03:50,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240383398] [2021-12-18 14:03:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:03:50,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:03:50,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:03:50,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:03:50,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:03:50,048 INFO L87 Difference]: Start difference. First operand 17543 states and 24634 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) [2021-12-18 14:03:54,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:03:54,432 INFO L93 Difference]: Finished difference Result 40378 states and 56317 transitions. [2021-12-18 14:03:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:03:54,432 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 [2021-12-18 14:03:54,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:03:54,515 INFO L225 Difference]: With dead ends: 40378 [2021-12-18 14:03:54,516 INFO L226 Difference]: Without dead ends: 22866 [2021-12-18 14:03:54,572 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:03:54,574 INFO L933 BasicCegarLoop]: 5997 mSDtfsCounter, 3624 mSDsluCounter, 5346 mSDsCounter, 0 mSdLazyCounter, 2408 mSolverCounterSat, 1483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 11343 SdHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1483 IncrementalHoareTripleChecker+Valid, 2408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 14:03:54,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4212 Valid, 11343 Invalid, 3891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1483 Valid, 2408 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 14:03:54,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22866 states. [2021-12-18 14:03:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22866 to 22191. [2021-12-18 14:03:55,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22191 states, 15454 states have (on average 1.2807687330141064) internal successors, (19793), 15791 states have internal predecessors, (19793), 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) [2021-12-18 14:03:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22191 states to 22191 states and 30592 transitions. [2021-12-18 14:03:55,374 INFO L78 Accepts]: Start accepts. Automaton has 22191 states and 30592 transitions. Word has length 177 [2021-12-18 14:03:55,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:03:55,375 INFO L470 AbstractCegarLoop]: Abstraction has 22191 states and 30592 transitions. [2021-12-18 14:03:55,375 INFO L471 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) [2021-12-18 14:03:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 22191 states and 30592 transitions. [2021-12-18 14:03:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-18 14:03:55,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:03:55,379 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:03:55,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 14:03:55,380 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:03:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:03:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash -674766659, now seen corresponding path program 1 times [2021-12-18 14:03:55,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:03:55,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403235610] [2021-12-18 14:03:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:03:55,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:03:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:03:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:03:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:03:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:03:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:03:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:03:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:03:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:03:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:03:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:03:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:03:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:03:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:03:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:03:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:03:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:03:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:03:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:03:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:03:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:03:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:03:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:03:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:03:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-18 14:03:55,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:03:55,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403235610] [2021-12-18 14:03:55,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403235610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:03:55,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:03:55,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:03:55,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339067582] [2021-12-18 14:03:55,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:03:55,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:03:55,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:03:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:03:55,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:03:55,727 INFO L87 Difference]: Start difference. First operand 22191 states and 30592 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) [2021-12-18 14:03:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:03:59,932 INFO L93 Difference]: Finished difference Result 57521 states and 79656 transitions. [2021-12-18 14:03:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:03:59,933 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 [2021-12-18 14:03:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:00,242 INFO L225 Difference]: With dead ends: 57521 [2021-12-18 14:04:00,243 INFO L226 Difference]: Without dead ends: 35616 [2021-12-18 14:04:00,295 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:04:00,296 INFO L933 BasicCegarLoop]: 5565 mSDtfsCounter, 3876 mSDsluCounter, 5168 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 1594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 10733 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:00,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4477 Valid, 10733 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1594 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 14:04:00,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35616 states. [2021-12-18 14:04:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35616 to 34664. [2021-12-18 14:04:01,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34664 states, 24202 states have (on average 1.2818362118833155) internal successors, (31023), 24727 states have internal predecessors, (31023), 8368 states have call successors, (8368), 2093 states have call predecessors, (8368), 2091 states have return successors, (8542), 8082 states have call predecessors, (8542), 8364 states have call successors, (8542) [2021-12-18 14:04:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34664 states to 34664 states and 47933 transitions. [2021-12-18 14:04:01,366 INFO L78 Accepts]: Start accepts. Automaton has 34664 states and 47933 transitions. Word has length 236 [2021-12-18 14:04:01,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:01,369 INFO L470 AbstractCegarLoop]: Abstraction has 34664 states and 47933 transitions. [2021-12-18 14:04:01,369 INFO L471 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) [2021-12-18 14:04:01,369 INFO L276 IsEmpty]: Start isEmpty. Operand 34664 states and 47933 transitions. [2021-12-18 14:04:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-18 14:04:01,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:01,373 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:04:01,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 14:04:01,373 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash -534218049, now seen corresponding path program 1 times [2021-12-18 14:04:01,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:01,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021056581] [2021-12-18 14:04:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:01,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:04:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:04:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:04:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:04:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-12-18 14:04:01,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:01,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021056581] [2021-12-18 14:04:01,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021056581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:01,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:01,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:04:01,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534631681] [2021-12-18 14:04:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:01,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:04:01,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:01,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:04:01,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:04:01,929 INFO L87 Difference]: Start difference. First operand 34664 states and 47933 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) [2021-12-18 14:04:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:05,309 INFO L93 Difference]: Finished difference Result 35876 states and 49696 transitions. [2021-12-18 14:04:05,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 14:04:05,310 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 [2021-12-18 14:04:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:05,507 INFO L225 Difference]: With dead ends: 35876 [2021-12-18 14:04:05,507 INFO L226 Difference]: Without dead ends: 35874 [2021-12-18 14:04:05,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:04:05,523 INFO L933 BasicCegarLoop]: 3486 mSDtfsCounter, 3758 mSDsluCounter, 7121 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4183 SdHoareTripleChecker+Valid, 10607 SdHoareTripleChecker+Invalid, 4019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:05,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4183 Valid, 10607 Invalid, 4019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-18 14:04:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35874 states. [2021-12-18 14:04:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35874 to 34924. [2021-12-18 14:04:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34924 states, 24373 states have (on average 1.2808435563943708) internal successors, (31218), 24914 states have internal predecessors, (31218), 8400 states have call successors, (8400), 2150 states have call predecessors, (8400), 2148 states have return successors, (8574), 8114 states have call predecessors, (8574), 8396 states have call successors, (8574) [2021-12-18 14:04:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34924 states to 34924 states and 48192 transitions. [2021-12-18 14:04:06,603 INFO L78 Accepts]: Start accepts. Automaton has 34924 states and 48192 transitions. Word has length 236 [2021-12-18 14:04:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:06,604 INFO L470 AbstractCegarLoop]: Abstraction has 34924 states and 48192 transitions. [2021-12-18 14:04:06,604 INFO L471 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) [2021-12-18 14:04:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 34924 states and 48192 transitions. [2021-12-18 14:04:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-18 14:04:06,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:06,609 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:04:06,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 14:04:06,610 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1794816192, now seen corresponding path program 1 times [2021-12-18 14:04:06,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:06,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923010573] [2021-12-18 14:04:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:06,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:04:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:04:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:04:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 14:04:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 14:04:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 14:04:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-18 14:04:07,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:07,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923010573] [2021-12-18 14:04:07,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923010573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:07,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:07,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:04:07,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765348959] [2021-12-18 14:04:07,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:07,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:04:07,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:07,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:04:07,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:04:07,068 INFO L87 Difference]: Start difference. First operand 34924 states and 48192 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) [2021-12-18 14:04:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:21,951 INFO L93 Difference]: Finished difference Result 84262 states and 116697 transitions. [2021-12-18 14:04:21,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:04:21,953 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 [2021-12-18 14:04:21,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:22,252 INFO L225 Difference]: With dead ends: 84262 [2021-12-18 14:04:22,252 INFO L226 Difference]: Without dead ends: 49624 [2021-12-18 14:04:22,337 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:04:22,337 INFO L933 BasicCegarLoop]: 6565 mSDtfsCounter, 4261 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 5973 mSolverCounterSat, 2574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 13434 SdHoareTripleChecker+Invalid, 8547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 5973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:22,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4739 Valid, 13434 Invalid, 8547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2574 Valid, 5973 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2021-12-18 14:04:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49624 states. [2021-12-18 14:04:23,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49624 to 47545. [2021-12-18 14:04:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47545 states, 33221 states have (on average 1.2811173655218084) internal successors, (42560), 33962 states have internal predecessors, (42560), 11441 states have call successors, (11441), 2874 states have call predecessors, (11441), 2880 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-12-18 14:04:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47545 states to 47545 states and 65685 transitions. [2021-12-18 14:04:24,195 INFO L78 Accepts]: Start accepts. Automaton has 47545 states and 65685 transitions. Word has length 244 [2021-12-18 14:04:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:24,196 INFO L470 AbstractCegarLoop]: Abstraction has 47545 states and 65685 transitions. [2021-12-18 14:04:24,196 INFO L471 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) [2021-12-18 14:04:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 47545 states and 65685 transitions. [2021-12-18 14:04:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-18 14:04:24,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:24,201 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:04:24,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 14:04:24,201 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:24,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1319345626, now seen corresponding path program 1 times [2021-12-18 14:04:24,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:24,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697352031] [2021-12-18 14:04:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:24,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:04:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:04:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:04:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:04:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 14:04:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:24,825 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-12-18 14:04:24,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:24,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697352031] [2021-12-18 14:04:24,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697352031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:24,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:24,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:04:24,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613864984] [2021-12-18 14:04:24,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:24,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:04:24,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:24,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:04:24,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:04:24,827 INFO L87 Difference]: Start difference. First operand 47545 states and 65685 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) [2021-12-18 14:04:28,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:28,641 INFO L93 Difference]: Finished difference Result 48807 states and 67681 transitions. [2021-12-18 14:04:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:04:28,641 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 [2021-12-18 14:04:28,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:28,781 INFO L225 Difference]: With dead ends: 48807 [2021-12-18 14:04:28,782 INFO L226 Difference]: Without dead ends: 48805 [2021-12-18 14:04:28,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:04:28,808 INFO L933 BasicCegarLoop]: 3491 mSDtfsCounter, 3731 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 3973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:28,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4148 Valid, 10610 Invalid, 3973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-18 14:04:28,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48805 states. [2021-12-18 14:04:30,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48805 to 47549. [2021-12-18 14:04:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47549 states, 33224 states have (on average 1.281091981699976) internal successors, (42563), 33965 states have internal predecessors, (42563), 11441 states have call successors, (11441), 2875 states have call predecessors, (11441), 2881 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-12-18 14:04:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47549 states to 47549 states and 65688 transitions. [2021-12-18 14:04:30,552 INFO L78 Accepts]: Start accepts. Automaton has 47549 states and 65688 transitions. Word has length 241 [2021-12-18 14:04:30,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:30,553 INFO L470 AbstractCegarLoop]: Abstraction has 47549 states and 65688 transitions. [2021-12-18 14:04:30,553 INFO L471 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) [2021-12-18 14:04:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 47549 states and 65688 transitions. [2021-12-18 14:04:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-18 14:04:30,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:30,558 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:04:30,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 14:04:30,558 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:30,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:30,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2023679265, now seen corresponding path program 1 times [2021-12-18 14:04:30,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:30,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650801445] [2021-12-18 14:04:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:30,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:04:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:04:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:04:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:04:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 14:04:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 14:04:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:30,925 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2021-12-18 14:04:30,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:30,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650801445] [2021-12-18 14:04:30,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650801445] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:30,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:30,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:04:30,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038342826] [2021-12-18 14:04:30,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:30,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:04:30,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:30,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:04:30,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:04:30,927 INFO L87 Difference]: Start difference. First operand 47549 states and 65688 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) [2021-12-18 14:04:35,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:35,224 INFO L93 Difference]: Finished difference Result 48811 states and 67684 transitions. [2021-12-18 14:04:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:04:35,225 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 [2021-12-18 14:04:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:35,371 INFO L225 Difference]: With dead ends: 48811 [2021-12-18 14:04:35,371 INFO L226 Difference]: Without dead ends: 48809 [2021-12-18 14:04:35,396 INFO L932 BasicCegarLoop]: 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 [2021-12-18 14:04:35,397 INFO L933 BasicCegarLoop]: 3491 mSDtfsCounter, 3731 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 3972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:35,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4148 Valid, 10610 Invalid, 3972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-18 14:04:35,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48809 states. [2021-12-18 14:04:36,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48809 to 47553. [2021-12-18 14:04:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47553 states, 33227 states have (on average 1.2810666024618533) internal successors, (42566), 33968 states have internal predecessors, (42566), 11441 states have call successors, (11441), 2876 states have call predecessors, (11441), 2882 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-12-18 14:04:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47553 states to 47553 states and 65691 transitions. [2021-12-18 14:04:37,338 INFO L78 Accepts]: Start accepts. Automaton has 47553 states and 65691 transitions. Word has length 246 [2021-12-18 14:04:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:37,340 INFO L470 AbstractCegarLoop]: Abstraction has 47553 states and 65691 transitions. [2021-12-18 14:04:37,340 INFO L471 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) [2021-12-18 14:04:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 47553 states and 65691 transitions. [2021-12-18 14:04:37,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-18 14:04:37,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:37,355 INFO L514 BasicCegarLoop]: 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] [2021-12-18 14:04:37,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 14:04:37,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:37,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:37,356 INFO L85 PathProgramCache]: Analyzing trace with hash 190645638, now seen corresponding path program 1 times [2021-12-18 14:04:37,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:37,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123057472] [2021-12-18 14:04:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:37,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:04:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:04:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:04:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:04:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 14:04:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 14:04:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-18 14:04:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2021-12-18 14:04:37,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:37,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123057472] [2021-12-18 14:04:37,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123057472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:37,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:37,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:04:37,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914014676] [2021-12-18 14:04:37,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:37,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:04:37,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:04:37,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:04:37,715 INFO L87 Difference]: Start difference. First operand 47553 states and 65691 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) [2021-12-18 14:04:42,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:42,008 INFO L93 Difference]: Finished difference Result 48815 states and 67687 transitions. [2021-12-18 14:04:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:04:42,009 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, (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) Word has length 251 [2021-12-18 14:04:42,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:42,160 INFO L225 Difference]: With dead ends: 48815 [2021-12-18 14:04:42,161 INFO L226 Difference]: Without dead ends: 48813 [2021-12-18 14:04:42,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:04:42,190 INFO L933 BasicCegarLoop]: 3491 mSDtfsCounter, 3731 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 1340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1340 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:42,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4148 Valid, 10610 Invalid, 3971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1340 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-18 14:04:42,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48813 states. [2021-12-18 14:04:43,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48813 to 47557. [2021-12-18 14:04:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47557 states, 33230 states have (on average 1.2810412278061991) internal successors, (42569), 33971 states have internal predecessors, (42569), 11441 states have call successors, (11441), 2877 states have call predecessors, (11441), 2883 states have return successors, (11684), 11074 states have call predecessors, (11684), 11437 states have call successors, (11684) [2021-12-18 14:04:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47557 states to 47557 states and 65694 transitions. [2021-12-18 14:04:44,089 INFO L78 Accepts]: Start accepts. Automaton has 47557 states and 65694 transitions. Word has length 251 [2021-12-18 14:04:44,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:44,090 INFO L470 AbstractCegarLoop]: Abstraction has 47557 states and 65694 transitions. [2021-12-18 14:04:44,090 INFO L471 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, (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) [2021-12-18 14:04:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 47557 states and 65694 transitions. [2021-12-18 14:04:44,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 14:04:44,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:44,097 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:04:44,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 14:04:44,098 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:44,098 INFO L85 PathProgramCache]: Analyzing trace with hash 501085078, now seen corresponding path program 1 times [2021-12-18 14:04:44,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:44,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735243234] [2021-12-18 14:04:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:44,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 14:04:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 14:04:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 14:04:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 14:04:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 14:04:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-18 14:04:44,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:44,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735243234] [2021-12-18 14:04:44,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735243234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:44,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:44,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:04:44,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231224804] [2021-12-18 14:04:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:44,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:04:44,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:44,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:04:44,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:04:44,470 INFO L87 Difference]: Start difference. First operand 47557 states and 65694 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 14:04:50,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:50,438 INFO L93 Difference]: Finished difference Result 113572 states and 157016 transitions. [2021-12-18 14:04:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:04:50,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 250 [2021-12-18 14:04:50,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:50,678 INFO L225 Difference]: With dead ends: 113572 [2021-12-18 14:04:50,679 INFO L226 Difference]: Without dead ends: 66301 [2021-12-18 14:04:50,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:04:50,807 INFO L933 BasicCegarLoop]: 5333 mSDtfsCounter, 3696 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 1585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 10229 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1585 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:50,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4283 Valid, 10229 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1585 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 14:04:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66301 states. [2021-12-18 14:04:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66301 to 64486. [2021-12-18 14:04:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64486 states, 45061 states have (on average 1.2782228534653026) internal successors, (57598), 46068 states have internal predecessors, (57598), 15418 states have call successors, (15418), 4006 states have call predecessors, (15418), 4004 states have return successors, (15697), 14922 states have call predecessors, (15697), 15414 states have call successors, (15697) [2021-12-18 14:04:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64486 states to 64486 states and 88713 transitions. [2021-12-18 14:04:53,832 INFO L78 Accepts]: Start accepts. Automaton has 64486 states and 88713 transitions. Word has length 250 [2021-12-18 14:04:53,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:04:53,833 INFO L470 AbstractCegarLoop]: Abstraction has 64486 states and 88713 transitions. [2021-12-18 14:04:53,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 14:04:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 64486 states and 88713 transitions. [2021-12-18 14:04:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-18 14:04:53,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:04:53,839 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:04:53,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 14:04:53,840 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:04:53,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:04:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash 928629503, now seen corresponding path program 1 times [2021-12-18 14:04:53,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:04:53,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531807420] [2021-12-18 14:04:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:04:53,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:04:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:04:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:53,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:04:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:04:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:04:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:04:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:04:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:04:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:04:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:04:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:04:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:04:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:04:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:04:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:04:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:04:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:04:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:04:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:04:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:04:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:04:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:04:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:04:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 14:04:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 14:04:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-18 14:04:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 14:04:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:04:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2021-12-18 14:04:54,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:04:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531807420] [2021-12-18 14:04:54,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531807420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:04:54,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:04:54,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:04:54,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033050818] [2021-12-18 14:04:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:04:54,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:04:54,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:04:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:04:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:04:54,198 INFO L87 Difference]: Start difference. First operand 64486 states and 88713 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, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 14:04:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:04:59,306 INFO L93 Difference]: Finished difference Result 66256 states and 91503 transitions. [2021-12-18 14:04:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 14:04:59,307 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, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 256 [2021-12-18 14:04:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:04:59,543 INFO L225 Difference]: With dead ends: 66256 [2021-12-18 14:04:59,543 INFO L226 Difference]: Without dead ends: 66254 [2021-12-18 14:04:59,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 14:04:59,582 INFO L933 BasicCegarLoop]: 3491 mSDtfsCounter, 3731 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 1339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 3970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1339 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:04:59,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4148 Valid, 10610 Invalid, 3970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1339 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-18 14:04:59,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66254 states. [2021-12-18 14:05:02,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66254 to 64490. [2021-12-18 14:05:02,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64490 states, 45064 states have (on average 1.2782043316172556) internal successors, (57601), 46071 states have internal predecessors, (57601), 15418 states have call successors, (15418), 4007 states have call predecessors, (15418), 4005 states have return successors, (15697), 14922 states have call predecessors, (15697), 15414 states have call successors, (15697) [2021-12-18 14:05:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64490 states to 64490 states and 88716 transitions. [2021-12-18 14:05:02,439 INFO L78 Accepts]: Start accepts. Automaton has 64490 states and 88716 transitions. Word has length 256 [2021-12-18 14:05:02,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:05:02,439 INFO L470 AbstractCegarLoop]: Abstraction has 64490 states and 88716 transitions. [2021-12-18 14:05:02,440 INFO L471 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, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 14:05:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 64490 states and 88716 transitions. [2021-12-18 14:05:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-12-18 14:05:02,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:05:02,447 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:05:02,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 14:05:02,447 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 14:05:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:05:02,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2070061286, now seen corresponding path program 1 times [2021-12-18 14:05:02,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:05:02,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120922217] [2021-12-18 14:05:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:05:02,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:05:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:05:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:05:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:05:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:05:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:05:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:05:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:05:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:05:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:05:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:05:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:05:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:05:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:05:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 14:05:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 14:05:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 14:05:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:05:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 14:05:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:05:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 14:05:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 14:05:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 14:05:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 14:05:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 14:05:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-18 14:05:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 14:05:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:05:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252