./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.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 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:27:49,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:27:49,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:27:49,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:27:49,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:27:49,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:27:49,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:27:49,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:27:49,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:27:49,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:27:49,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:27:49,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:27:49,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:27:49,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:27:49,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:27:49,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:27:49,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:27:49,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:27:49,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:27:49,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:27:49,476 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:27:49,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:27:49,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:27:49,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:27:49,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:27:49,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:27:49,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:27:49,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:27:49,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:27:49,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:27:49,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:27:49,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:27:49,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:27:49,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:27:49,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:27:49,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:27:49,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:27:49,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:27:49,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:27:49,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:27:49,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:27:49,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:27:49,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 04:27:49,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:27:49,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:27:49,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:27:49,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:27:49,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:27:49,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:27:49,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:27:49,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:27:49,525 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:27:49,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:27:49,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:27:49,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:27:49,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:27:49,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:27:49,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:27:49,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:27:49,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:27:49,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:27:49,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:27:49,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 04:27:49,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 04:27:49,530 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:27:49,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:27:49,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:27:49,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2022-07-14 04:27:49,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:27:49,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:27:49,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:27:49,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:27:49,783 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:27:49,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-14 04:27:49,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b921d09cf/a4c3409cf2134602bf39358bb28d5e0e/FLAGb72a5db87 [2022-07-14 04:27:50,608 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:27:50,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-14 04:27:50,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b921d09cf/a4c3409cf2134602bf39358bb28d5e0e/FLAGb72a5db87 [2022-07-14 04:27:50,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b921d09cf/a4c3409cf2134602bf39358bb28d5e0e [2022-07-14 04:27:50,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:27:50,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:27:50,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:27:50,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:27:50,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:27:50,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:27:50" (1/1) ... [2022-07-14 04:27:50,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656058d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:27:50, skipping insertion in model container [2022-07-14 04:27:50,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:27:50" (1/1) ... [2022-07-14 04:27:50,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:27:50,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:27:53,388 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-14 04:27:53,391 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-14 04:27:53,392 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-14 04:27:53,392 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-14 04:27:53,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:27:53,445 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:27:53,765 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7917] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 04:27:53,771 INFO L158 Benchmark]: Toolchain (without parser) took 2949.22ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 81.0MB in the beginning and 80.8MB in the end (delta: 165.0kB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-07-14 04:27:53,772 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory was 104.1MB in the beginning and 104.1MB in the end (delta: 27.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 04:27:53,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2945.64ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 80.7MB in the beginning and 80.8MB in the end (delta: -41.3kB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-07-14 04:27:53,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory was 104.1MB in the beginning and 104.1MB in the end (delta: 27.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2945.64ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 80.7MB in the beginning and 80.8MB in the end (delta: -41.3kB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7917] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7917]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:27:55,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:27:55,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:27:55,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:27:55,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:27:55,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:27:55,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:27:55,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:27:55,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:27:55,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:27:55,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:27:55,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:27:55,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:27:55,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:27:55,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:27:55,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:27:55,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:27:55,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:27:55,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:27:55,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:27:55,825 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:27:55,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:27:55,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:27:55,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:27:55,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:27:55,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:27:55,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:27:55,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:27:55,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:27:55,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:27:55,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:27:55,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:27:55,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:27:55,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:27:55,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:27:55,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:27:55,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:27:55,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:27:55,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:27:55,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:27:55,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:27:55,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:27:55,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 04:27:55,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:27:55,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:27:55,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:27:55,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:27:55,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:27:55,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:27:55,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:27:55,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:27:55,881 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:27:55,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:27:55,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:27:55,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:27:55,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:27:55,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:27:55,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 04:27:55,883 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 04:27:55,883 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 04:27:55,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:27:55,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:27:55,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:27:55,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:27:55,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:27:55,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:27:55,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:27:55,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:27:55,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:27:55,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:27:55,885 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 04:27:55,885 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 04:27:55,885 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:27:55,885 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:27:55,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:27:55,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 04:27:55,886 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2022-07-14 04:27:56,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:27:56,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:27:56,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:27:56,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:27:56,228 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:27:56,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-14 04:27:56,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa90f5b63/acb2f85ec455427e96f01c645834df28/FLAG73e5fbe66 [2022-07-14 04:27:56,967 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:27:56,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-14 04:27:57,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa90f5b63/acb2f85ec455427e96f01c645834df28/FLAG73e5fbe66 [2022-07-14 04:27:57,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa90f5b63/acb2f85ec455427e96f01c645834df28 [2022-07-14 04:27:57,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:27:57,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:27:57,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:27:57,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:27:57,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:27:57,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:27:57" (1/1) ... [2022-07-14 04:27:57,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528e5332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:27:57, skipping insertion in model container [2022-07-14 04:27:57,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:27:57" (1/1) ... [2022-07-14 04:27:57,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:27:57,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:27:59,368 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-14 04:27:59,370 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-14 04:27:59,371 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-14 04:27:59,372 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-14 04:27:59,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:27:59,436 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 04:27:59,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:27:59,742 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-14 04:27:59,745 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-14 04:27:59,746 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-14 04:27:59,746 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-14 04:27:59,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:27:59,777 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:28:00,094 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-14 04:28:00,094 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-14 04:28:00,095 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-14 04:28:00,095 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_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-14 04:28:00,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:28:00,231 INFO L208 MainTranslator]: Completed translation [2022-07-14 04:28:00,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00 WrapperNode [2022-07-14 04:28:00,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 04:28:00,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 04:28:00,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 04:28:00,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 04:28:00,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,420 INFO L137 Inliner]: procedures = 440, calls = 2260, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4697 [2022-07-14 04:28:00,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 04:28:00,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 04:28:00,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 04:28:00,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 04:28:00,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 04:28:00,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 04:28:00,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 04:28:00,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 04:28:00,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (1/1) ... [2022-07-14 04:28:00,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:28:00,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 04:28:00,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 04:28:00,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 04:28:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-07-14 04:28:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-07-14 04:28:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 04:28:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 04:28:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 04:28:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 04:28:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 04:28:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 04:28:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-07-14 04:28:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-07-14 04:28:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 04:28:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 04:28:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-07-14 04:28:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-07-14 04:28:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-07-14 04:28:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-07-14 04:28:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:28:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:28:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 04:28:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 04:28:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-07-14 04:28:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-07-14 04:28:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-07-14 04:28:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-07-14 04:28:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-07-14 04:28:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-07-14 04:28:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-07-14 04:28:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-07-14 04:28:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 04:28:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 04:28:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 04:28:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 04:28:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 04:28:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 04:28:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 04:28:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 04:28:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 04:28:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 04:28:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 04:28:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-07-14 04:28:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-07-14 04:28:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-07-14 04:28:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-07-14 04:28:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_65 [2022-07-14 04:28:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_65 [2022-07-14 04:28:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 04:28:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 04:28:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-07-14 04:28:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-07-14 04:28:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-14 04:28:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-14 04:28:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-07-14 04:28:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-07-14 04:28:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-07-14 04:28:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-07-14 04:28:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-07-14 04:28:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-07-14 04:28:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 04:28:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 04:28:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 04:28:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 04:28:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 04:28:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 04:28:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 04:28:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 04:28:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 04:28:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 04:28:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-07-14 04:28:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-07-14 04:28:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-07-14 04:28:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-07-14 04:28:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-07-14 04:28:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-07-14 04:28:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-07-14 04:28:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-07-14 04:28:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 04:28:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 04:28:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 04:28:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 04:28:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-07-14 04:28:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-07-14 04:28:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-07-14 04:28:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-07-14 04:28:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-07-14 04:28:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-07-14 04:28:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:28:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:28:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 04:28:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-07-14 04:28:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-07-14 04:28:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-07-14 04:28:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-07-14 04:28:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-14 04:28:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-14 04:28:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 04:28:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 04:28:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 04:28:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 04:28:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 04:28:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 04:28:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 04:28:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:28:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:28:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-07-14 04:28:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-07-14 04:28:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 04:28:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 04:28:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 04:28:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 04:28:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 04:28:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 04:28:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-07-14 04:28:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-07-14 04:28:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-07-14 04:28:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-07-14 04:28:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-07-14 04:28:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-07-14 04:28:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 04:28:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-14 04:28:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-07-14 04:28:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 04:28:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 04:28:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 04:28:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:28:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:28:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 04:28:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 04:28:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-07-14 04:28:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-07-14 04:28:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-07-14 04:28:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-07-14 04:28:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-07-14 04:28:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-07-14 04:28:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 04:28:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 04:28:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-07-14 04:28:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-07-14 04:28:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 04:28:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 04:28:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 04:28:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 04:28:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-07-14 04:28:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-07-14 04:28:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-07-14 04:28:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-07-14 04:28:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 04:28:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-07-14 04:28:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-07-14 04:28:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 04:28:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 04:28:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 04:28:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 04:28:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 04:28:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-07-14 04:28:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-07-14 04:28:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 04:28:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 04:28:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 04:28:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 04:28:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 04:28:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-07-14 04:28:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-07-14 04:28:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-07-14 04:28:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-07-14 04:28:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-14 04:28:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-14 04:28:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 04:28:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 04:28:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 04:28:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 04:28:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 04:28:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 04:28:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-14 04:28:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-14 04:28:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-07-14 04:28:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-07-14 04:28:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-07-14 04:28:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-07-14 04:28:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 04:28:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 04:28:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 04:28:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 04:28:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-07-14 04:28:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-07-14 04:28:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-14 04:28:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-14 04:28:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-07-14 04:28:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-07-14 04:28:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-07-14 04:28:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-07-14 04:28:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-07-14 04:28:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-07-14 04:28:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 04:28:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 04:28:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-07-14 04:28:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-07-14 04:28:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 04:28:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 04:28:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-07-14 04:28:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-07-14 04:28:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-07-14 04:28:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-07-14 04:28:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-07-14 04:28:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-07-14 04:28:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-07-14 04:28:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-07-14 04:28:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 04:28:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 04:28:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-07-14 04:28:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-07-14 04:28:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 04:28:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 04:28:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 04:28:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 04:28:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-07-14 04:28:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-07-14 04:28:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-14 04:28:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-14 04:28:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-14 04:28:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-14 04:28:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-14 04:28:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 04:28:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 04:28:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-14 04:28:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-14 04:28:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-14 04:28:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-14 04:28:01,322 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 04:28:01,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 04:28:11,947 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 04:28:36,399 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2022-07-14 04:28:36,399 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2022-07-14 04:28:36,399 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976-2: SUMMARY for call tlan_eisa_probe_#t~ret340#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume !(16bv32 == ~debug~0); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret336#1;havoc tlan_eisa_probe_#t~ret336#1; [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret336#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7014: SUMMARY for call tlan_eisa_probe_#t~ret341#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-07-14 04:28:36,400 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6983: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret340#1;havoc tlan_eisa_probe_#t~ret340#1; [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~nondet331#1; [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920: SUMMARY for call tlan_eisa_probe_#t~ret330#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6987: tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret341#1;havoc tlan_eisa_probe_#t~ret341#1; [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-14 04:28:36,401 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6991: tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet334#1; [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~nondet333#1; [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6961: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6995: tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-1: call tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset;havoc tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset; [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6999: tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-07-14 04:28:36,402 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7033-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet342#1; [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume !(16bv32 == ~debug~0); [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet343#1; [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume !(16bv32 == ~debug~0); [2022-07-14 04:28:36,403 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-14 04:28:36,549 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 04:28:36,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 04:28:36,575 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 04:28:36,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:28:36 BoogieIcfgContainer [2022-07-14 04:28:36,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 04:28:36,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 04:28:36,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 04:28:36,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 04:28:36,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 04:27:57" (1/3) ... [2022-07-14 04:28:36,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641d8b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:28:36, skipping insertion in model container [2022-07-14 04:28:36,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:28:00" (2/3) ... [2022-07-14 04:28:36,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641d8b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:28:36, skipping insertion in model container [2022-07-14 04:28:36,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:28:36" (3/3) ... [2022-07-14 04:28:36,587 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-14 04:28:36,600 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 04:28:36,600 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 04:28:36,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 04:28:36,727 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7224d59e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ae3642b [2022-07-14 04:28:36,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 04:28:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) [2022-07-14 04:28:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 04:28:36,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:36,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:28:36,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:36,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1354900798, now seen corresponding path program 1 times [2022-07-14 04:28:36,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:36,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334917445] [2022-07-14 04:28:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:36,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:36,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:36,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:36,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 04:28:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:38,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:28:38,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:28:38,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:28:38,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:38,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334917445] [2022-07-14 04:28:38,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334917445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:28:38,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:28:38,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:28:38,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924229571] [2022-07-14 04:28:38,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:38,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:28:38,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:38,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:28:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:28:38,369 INFO L87 Difference]: Start difference. First operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 04:28:40,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:28:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:41,295 INFO L93 Difference]: Finished difference Result 5693 states and 8294 transitions. [2022-07-14 04:28:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:28:41,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-07-14 04:28:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:41,330 INFO L225 Difference]: With dead ends: 5693 [2022-07-14 04:28:41,330 INFO L226 Difference]: Without dead ends: 3696 [2022-07-14 04:28:41,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:28:41,358 INFO L413 NwaCegarLoop]: 3905 mSDtfsCounter, 2403 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 6597 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:41,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 6597 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-14 04:28:41,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2022-07-14 04:28:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3654. [2022-07-14 04:28:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 2365 states have (on average 1.2312896405919662) internal successors, (2912), 2466 states have internal predecessors, (2912), 1080 states have call successors, (1080), 207 states have call predecessors, (1080), 206 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-14 04:28:41,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5078 transitions. [2022-07-14 04:28:41,590 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5078 transitions. Word has length 52 [2022-07-14 04:28:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:41,591 INFO L495 AbstractCegarLoop]: Abstraction has 3654 states and 5078 transitions. [2022-07-14 04:28:41,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 04:28:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5078 transitions. [2022-07-14 04:28:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 04:28:41,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:41,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:28:41,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:41,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:41,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:41,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:41,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1370419516, now seen corresponding path program 1 times [2022-07-14 04:28:41,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:41,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806398607] [2022-07-14 04:28:41,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:41,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:41,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:41,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:41,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 04:28:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:43,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:43,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:28:43,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:28:43,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:43,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806398607] [2022-07-14 04:28:43,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806398607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:28:43,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:28:43,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 04:28:43,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333700326] [2022-07-14 04:28:43,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:43,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:43,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:43,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:43,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:28:43,965 INFO L87 Difference]: Start difference. First operand 3654 states and 5078 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 04:28:44,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:44,264 INFO L93 Difference]: Finished difference Result 3660 states and 5083 transitions. [2022-07-14 04:28:44,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 04:28:44,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-07-14 04:28:44,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:44,286 INFO L225 Difference]: With dead ends: 3660 [2022-07-14 04:28:44,287 INFO L226 Difference]: Without dead ends: 3658 [2022-07-14 04:28:44,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:44,292 INFO L413 NwaCegarLoop]: 2765 mSDtfsCounter, 2735 mSDsluCounter, 5518 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 8283 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:44,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 8283 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:28:44,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2022-07-14 04:28:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3658. [2022-07-14 04:28:44,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 2368 states have (on average 1.2309966216216217) internal successors, (2915), 2469 states have internal predecessors, (2915), 1080 states have call successors, (1080), 208 states have call predecessors, (1080), 207 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-14 04:28:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 5081 transitions. [2022-07-14 04:28:44,451 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 5081 transitions. Word has length 52 [2022-07-14 04:28:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:44,452 INFO L495 AbstractCegarLoop]: Abstraction has 3658 states and 5081 transitions. [2022-07-14 04:28:44,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 04:28:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5081 transitions. [2022-07-14 04:28:44,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 04:28:44,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:44,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:28:44,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-14 04:28:44,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:44,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:44,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1181643244, now seen corresponding path program 1 times [2022-07-14 04:28:44,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:44,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769378191] [2022-07-14 04:28:44,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:44,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:44,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:44,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:44,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 04:28:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:46,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:46,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:28:46,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:28:47,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:47,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769378191] [2022-07-14 04:28:47,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769378191] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:47,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:47,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:47,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001972294] [2022-07-14 04:28:47,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:47,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:47,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:47,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:47,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:47,076 INFO L87 Difference]: Start difference. First operand 3658 states and 5081 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:28:47,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:47,414 INFO L93 Difference]: Finished difference Result 3664 states and 5086 transitions. [2022-07-14 04:28:47,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:47,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2022-07-14 04:28:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:47,441 INFO L225 Difference]: With dead ends: 3664 [2022-07-14 04:28:47,441 INFO L226 Difference]: Without dead ends: 3662 [2022-07-14 04:28:47,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:47,449 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:47,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2746 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:28:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-07-14 04:28:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3662. [2022-07-14 04:28:47,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 2371 states have (on average 1.230704344158583) internal successors, (2918), 2472 states have internal predecessors, (2918), 1080 states have call successors, (1080), 209 states have call predecessors, (1080), 208 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-14 04:28:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 5084 transitions. [2022-07-14 04:28:47,608 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 5084 transitions. Word has length 57 [2022-07-14 04:28:47,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:47,610 INFO L495 AbstractCegarLoop]: Abstraction has 3662 states and 5084 transitions. [2022-07-14 04:28:47,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:28:47,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5084 transitions. [2022-07-14 04:28:47,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 04:28:47,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:47,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:28:47,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:47,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:47,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:47,840 INFO L85 PathProgramCache]: Analyzing trace with hash -160876412, now seen corresponding path program 1 times [2022-07-14 04:28:47,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:47,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186019749] [2022-07-14 04:28:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:47,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:47,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:47,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:47,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 04:28:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:49,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:49,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 04:28:49,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 04:28:50,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:50,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186019749] [2022-07-14 04:28:50,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186019749] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:50,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:50,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101346590] [2022-07-14 04:28:50,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:50,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:50,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:50,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:50,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:50,268 INFO L87 Difference]: Start difference. First operand 3662 states and 5084 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 04:28:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:50,650 INFO L93 Difference]: Finished difference Result 3668 states and 5089 transitions. [2022-07-14 04:28:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:50,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-07-14 04:28:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:50,668 INFO L225 Difference]: With dead ends: 3668 [2022-07-14 04:28:50,668 INFO L226 Difference]: Without dead ends: 3666 [2022-07-14 04:28:50,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:50,673 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:50,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:28:50,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-07-14 04:28:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3666. [2022-07-14 04:28:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 2374 states have (on average 1.2304128053917438) internal successors, (2921), 2475 states have internal predecessors, (2921), 1080 states have call successors, (1080), 210 states have call predecessors, (1080), 209 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-14 04:28:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 5087 transitions. [2022-07-14 04:28:50,810 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 5087 transitions. Word has length 62 [2022-07-14 04:28:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:50,811 INFO L495 AbstractCegarLoop]: Abstraction has 3666 states and 5087 transitions. [2022-07-14 04:28:50,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 04:28:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 5087 transitions. [2022-07-14 04:28:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-14 04:28:50,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:50,813 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:28:50,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:51,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:51,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:51,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:51,041 INFO L85 PathProgramCache]: Analyzing trace with hash -16274476, now seen corresponding path program 1 times [2022-07-14 04:28:51,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:51,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036779203] [2022-07-14 04:28:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:51,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:51,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:51,060 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:51,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 04:28:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:52,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:52,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 04:28:53,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 04:28:53,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:53,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036779203] [2022-07-14 04:28:53,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036779203] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:53,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:53,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:53,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369616778] [2022-07-14 04:28:53,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:53,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:53,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:53,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:53,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:53,606 INFO L87 Difference]: Start difference. First operand 3666 states and 5087 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 04:28:53,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:53,980 INFO L93 Difference]: Finished difference Result 3672 states and 5092 transitions. [2022-07-14 04:28:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:53,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-07-14 04:28:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:54,003 INFO L225 Difference]: With dead ends: 3672 [2022-07-14 04:28:54,003 INFO L226 Difference]: Without dead ends: 3670 [2022-07-14 04:28:54,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:54,008 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:54,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:28:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2022-07-14 04:28:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3670. [2022-07-14 04:28:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 2377 states have (on average 1.2301220025241901) internal successors, (2924), 2478 states have internal predecessors, (2924), 1080 states have call successors, (1080), 211 states have call predecessors, (1080), 210 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-14 04:28:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5090 transitions. [2022-07-14 04:28:54,253 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5090 transitions. Word has length 67 [2022-07-14 04:28:54,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:54,253 INFO L495 AbstractCegarLoop]: Abstraction has 3670 states and 5090 transitions. [2022-07-14 04:28:54,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 04:28:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5090 transitions. [2022-07-14 04:28:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-14 04:28:54,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:54,255 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:28:54,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:54,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:54,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:54,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1205869921, now seen corresponding path program 1 times [2022-07-14 04:28:54,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:54,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166830385] [2022-07-14 04:28:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:54,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:54,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:54,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:54,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 04:28:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:55,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 04:28:56,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-14 04:28:57,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-14 04:28:58,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:58,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166830385] [2022-07-14 04:28:58,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166830385] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 04:28:58,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 04:28:58,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2022-07-14 04:28:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269534894] [2022-07-14 04:28:58,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 04:28:58,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 04:28:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 04:28:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-14 04:28:58,287 INFO L87 Difference]: Start difference. First operand 3670 states and 5090 transitions. Second operand has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-14 04:29:03,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:03,087 INFO L93 Difference]: Finished difference Result 5710 states and 7885 transitions. [2022-07-14 04:29:03,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-14 04:29:03,088 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 86 [2022-07-14 04:29:03,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:03,107 INFO L225 Difference]: With dead ends: 5710 [2022-07-14 04:29:03,107 INFO L226 Difference]: Without dead ends: 3707 [2022-07-14 04:29:03,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 04:29:03,124 INFO L413 NwaCegarLoop]: 2731 mSDtfsCounter, 156 mSDsluCounter, 40718 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 43449 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:03,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 43449 Invalid, 869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-14 04:29:03,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-14 04:29:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3689. [2022-07-14 04:29:03,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2392 states have (on average 1.2286789297658862) internal successors, (2939), 2493 states have internal predecessors, (2939), 1084 states have call successors, (1084), 211 states have call predecessors, (1084), 210 states have return successors, (1090), 1046 states have call predecessors, (1090), 1081 states have call successors, (1090) [2022-07-14 04:29:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5113 transitions. [2022-07-14 04:29:03,356 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5113 transitions. Word has length 86 [2022-07-14 04:29:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:03,356 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5113 transitions. [2022-07-14 04:29:03,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-14 04:29:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5113 transitions. [2022-07-14 04:29:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-14 04:29:03,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:03,357 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:03,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:03,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:03,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:03,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:03,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1863967300, now seen corresponding path program 1 times [2022-07-14 04:29:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:03,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912543192] [2022-07-14 04:29:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:03,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:03,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:03,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 04:29:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:04,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:04,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-14 04:29:05,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-14 04:29:05,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:05,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912543192] [2022-07-14 04:29:05,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912543192] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:05,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:05,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:05,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158553532] [2022-07-14 04:29:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:05,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:05,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:05,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:05,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:05,821 INFO L87 Difference]: Start difference. First operand 3689 states and 5113 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 04:29:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:06,101 INFO L93 Difference]: Finished difference Result 3695 states and 5118 transitions. [2022-07-14 04:29:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:06,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-07-14 04:29:06,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:06,116 INFO L225 Difference]: With dead ends: 3695 [2022-07-14 04:29:06,117 INFO L226 Difference]: Without dead ends: 3693 [2022-07-14 04:29:06,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:06,120 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:06,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-07-14 04:29:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2022-07-14 04:29:06,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2395 states have (on average 1.22839248434238) internal successors, (2942), 2496 states have internal predecessors, (2942), 1084 states have call successors, (1084), 212 states have call predecessors, (1084), 211 states have return successors, (1090), 1046 states have call predecessors, (1090), 1081 states have call successors, (1090) [2022-07-14 04:29:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5116 transitions. [2022-07-14 04:29:06,238 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5116 transitions. Word has length 72 [2022-07-14 04:29:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:06,238 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5116 transitions. [2022-07-14 04:29:06,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 04:29:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5116 transitions. [2022-07-14 04:29:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-14 04:29:06,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:06,239 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:06,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:06,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:06,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash 523585940, now seen corresponding path program 1 times [2022-07-14 04:29:06,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:06,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572437623] [2022-07-14 04:29:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:06,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:06,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:06,459 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:06,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 04:29:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:07,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:07,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 04:29:08,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 04:29:08,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:08,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572437623] [2022-07-14 04:29:08,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572437623] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:08,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:08,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:08,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552288609] [2022-07-14 04:29:08,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:08,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:08,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:08,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:08,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:08,719 INFO L87 Difference]: Start difference. First operand 3693 states and 5116 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 04:29:09,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:09,116 INFO L93 Difference]: Finished difference Result 3699 states and 5121 transitions. [2022-07-14 04:29:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2022-07-14 04:29:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:09,143 INFO L225 Difference]: With dead ends: 3699 [2022-07-14 04:29:09,143 INFO L226 Difference]: Without dead ends: 3697 [2022-07-14 04:29:09,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:09,145 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:09,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:09,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2022-07-14 04:29:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3697. [2022-07-14 04:29:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2398 states have (on average 1.2281067556296914) internal successors, (2945), 2499 states have internal predecessors, (2945), 1084 states have call successors, (1084), 213 states have call predecessors, (1084), 212 states have return successors, (1090), 1046 states have call predecessors, (1090), 1081 states have call successors, (1090) [2022-07-14 04:29:09,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5119 transitions. [2022-07-14 04:29:09,272 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5119 transitions. Word has length 77 [2022-07-14 04:29:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:09,273 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5119 transitions. [2022-07-14 04:29:09,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 04:29:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5119 transitions. [2022-07-14 04:29:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-14 04:29:09,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:09,275 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:09,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:09,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:09,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:09,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:09,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1815933948, now seen corresponding path program 1 times [2022-07-14 04:29:09,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:09,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860794060] [2022-07-14 04:29:09,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:09,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:09,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:09,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:09,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 04:29:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:10,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:10,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 04:29:11,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 04:29:11,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:11,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860794060] [2022-07-14 04:29:11,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860794060] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:11,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:11,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:11,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378431512] [2022-07-14 04:29:11,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:11,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:11,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:11,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:11,767 INFO L87 Difference]: Start difference. First operand 3697 states and 5119 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 04:29:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:12,194 INFO L93 Difference]: Finished difference Result 6818 states and 9765 transitions. [2022-07-14 04:29:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 04:29:12,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-07-14 04:29:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:12,230 INFO L225 Difference]: With dead ends: 6818 [2022-07-14 04:29:12,230 INFO L226 Difference]: Without dead ends: 6816 [2022-07-14 04:29:12,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:12,238 INFO L413 NwaCegarLoop]: 3660 mSDtfsCounter, 2360 mSDsluCounter, 10083 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 13743 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:12,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 13743 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:12,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6816 states. [2022-07-14 04:29:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6816 to 6802. [2022-07-14 04:29:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6802 states, 4401 states have (on average 1.2251760963417404) internal successors, (5392), 4598 states have internal predecessors, (5392), 1988 states have call successors, (1988), 422 states have call predecessors, (1988), 410 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-14 04:29:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6802 states to 6802 states and 9752 transitions. [2022-07-14 04:29:12,592 INFO L78 Accepts]: Start accepts. Automaton has 6802 states and 9752 transitions. Word has length 82 [2022-07-14 04:29:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:12,593 INFO L495 AbstractCegarLoop]: Abstraction has 6802 states and 9752 transitions. [2022-07-14 04:29:12,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 04:29:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 6802 states and 9752 transitions. [2022-07-14 04:29:12,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-14 04:29:12,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:12,595 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:12,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:12,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:12,815 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:12,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:12,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1162188972, now seen corresponding path program 1 times [2022-07-14 04:29:12,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:12,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949147848] [2022-07-14 04:29:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:12,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:12,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:12,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:12,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 04:29:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:14,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:14,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 04:29:14,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 04:29:15,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:15,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949147848] [2022-07-14 04:29:15,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949147848] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:15,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:15,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:15,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206481725] [2022-07-14 04:29:15,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:15,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:15,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:15,352 INFO L87 Difference]: Start difference. First operand 6802 states and 9752 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 04:29:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:15,747 INFO L93 Difference]: Finished difference Result 6812 states and 9761 transitions. [2022-07-14 04:29:15,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2022-07-14 04:29:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:15,775 INFO L225 Difference]: With dead ends: 6812 [2022-07-14 04:29:15,775 INFO L226 Difference]: Without dead ends: 6810 [2022-07-14 04:29:15,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:15,779 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2740 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:15,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2740 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2022-07-14 04:29:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 6810. [2022-07-14 04:29:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 4407 states have (on average 1.2248695257544815) internal successors, (5398), 4604 states have internal predecessors, (5398), 1988 states have call successors, (1988), 424 states have call predecessors, (1988), 412 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-14 04:29:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 9758 transitions. [2022-07-14 04:29:16,135 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 9758 transitions. Word has length 87 [2022-07-14 04:29:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:16,136 INFO L495 AbstractCegarLoop]: Abstraction has 6810 states and 9758 transitions. [2022-07-14 04:29:16,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 04:29:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 9758 transitions. [2022-07-14 04:29:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-14 04:29:16,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:16,138 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:16,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:16,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:16,351 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:16,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash 667203012, now seen corresponding path program 1 times [2022-07-14 04:29:16,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:16,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487078954] [2022-07-14 04:29:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:16,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:16,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:16,355 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:16,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 04:29:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:17,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:17,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 04:29:18,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 04:29:19,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:19,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487078954] [2022-07-14 04:29:19,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487078954] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:19,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:19,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:19,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067063064] [2022-07-14 04:29:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:19,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:19,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:19,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:19,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:19,055 INFO L87 Difference]: Start difference. First operand 6810 states and 9758 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 04:29:19,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:19,451 INFO L93 Difference]: Finished difference Result 6820 states and 9767 transitions. [2022-07-14 04:29:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2022-07-14 04:29:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:19,474 INFO L225 Difference]: With dead ends: 6820 [2022-07-14 04:29:19,475 INFO L226 Difference]: Without dead ends: 6818 [2022-07-14 04:29:19,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:19,481 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:19,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2739 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:19,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6818 states. [2022-07-14 04:29:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6818 to 6818. [2022-07-14 04:29:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 4413 states have (on average 1.224563788805801) internal successors, (5404), 4610 states have internal predecessors, (5404), 1988 states have call successors, (1988), 426 states have call predecessors, (1988), 414 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-14 04:29:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 9764 transitions. [2022-07-14 04:29:19,818 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 9764 transitions. Word has length 92 [2022-07-14 04:29:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:19,819 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 9764 transitions. [2022-07-14 04:29:19,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 04:29:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 9764 transitions. [2022-07-14 04:29:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-14 04:29:19,822 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:19,839 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:19,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:20,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:20,052 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash 708248852, now seen corresponding path program 1 times [2022-07-14 04:29:20,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:20,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372993630] [2022-07-14 04:29:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:20,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:20,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:20,055 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:20,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 04:29:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:21,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:21,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 04:29:22,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:22,642 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 04:29:22,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:22,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372993630] [2022-07-14 04:29:22,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372993630] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:22,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:22,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:22,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292972200] [2022-07-14 04:29:22,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:22,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:22,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:22,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:22,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:22,644 INFO L87 Difference]: Start difference. First operand 6818 states and 9764 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 04:29:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:23,137 INFO L93 Difference]: Finished difference Result 6828 states and 9773 transitions. [2022-07-14 04:29:23,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:23,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-07-14 04:29:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:23,159 INFO L225 Difference]: With dead ends: 6828 [2022-07-14 04:29:23,159 INFO L226 Difference]: Without dead ends: 6826 [2022-07-14 04:29:23,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:23,162 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2738 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:23,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2738 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2022-07-14 04:29:23,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 6826. [2022-07-14 04:29:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6826 states, 4419 states have (on average 1.2242588821000226) internal successors, (5410), 4616 states have internal predecessors, (5410), 1988 states have call successors, (1988), 428 states have call predecessors, (1988), 416 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-14 04:29:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 9770 transitions. [2022-07-14 04:29:23,456 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 9770 transitions. Word has length 97 [2022-07-14 04:29:23,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:23,456 INFO L495 AbstractCegarLoop]: Abstraction has 6826 states and 9770 transitions. [2022-07-14 04:29:23,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 04:29:23,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 9770 transitions. [2022-07-14 04:29:23,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-14 04:29:23,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:23,460 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:23,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-14 04:29:23,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:23,680 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:23,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash 914284420, now seen corresponding path program 1 times [2022-07-14 04:29:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:23,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068904066] [2022-07-14 04:29:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:23,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:23,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:23,685 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:23,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 04:29:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:25,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:25,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-14 04:29:26,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:26,478 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-14 04:29:26,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:26,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068904066] [2022-07-14 04:29:26,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068904066] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:26,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:26,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:26,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851245891] [2022-07-14 04:29:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:26,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:26,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:26,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:26,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:26,480 INFO L87 Difference]: Start difference. First operand 6826 states and 9770 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 04:29:27,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:27,006 INFO L93 Difference]: Finished difference Result 6836 states and 9779 transitions. [2022-07-14 04:29:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:27,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2022-07-14 04:29:27,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:27,038 INFO L225 Difference]: With dead ends: 6836 [2022-07-14 04:29:27,038 INFO L226 Difference]: Without dead ends: 6832 [2022-07-14 04:29:27,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:27,044 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:27,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:27,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2022-07-14 04:29:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2022-07-14 04:29:27,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 4424 states have (on average 1.2237793851717902) internal successors, (5414), 4620 states have internal predecessors, (5414), 1988 states have call successors, (1988), 430 states have call predecessors, (1988), 417 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-14 04:29:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9774 transitions. [2022-07-14 04:29:27,400 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9774 transitions. Word has length 102 [2022-07-14 04:29:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:27,403 INFO L495 AbstractCegarLoop]: Abstraction has 6832 states and 9774 transitions. [2022-07-14 04:29:27,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 04:29:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9774 transitions. [2022-07-14 04:29:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 04:29:27,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:27,405 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:27,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:27,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:27,620 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:27,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2118853332, now seen corresponding path program 1 times [2022-07-14 04:29:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:27,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130161846] [2022-07-14 04:29:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:27,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:27,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:27,636 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:27,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 04:29:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:29,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:29,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 04:29:30,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 04:29:30,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:30,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130161846] [2022-07-14 04:29:30,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130161846] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:30,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:30,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:30,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655930856] [2022-07-14 04:29:30,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:30,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:30,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:30,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:30,786 INFO L87 Difference]: Start difference. First operand 6832 states and 9774 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 04:29:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:31,304 INFO L93 Difference]: Finished difference Result 6838 states and 9779 transitions. [2022-07-14 04:29:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:31,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2022-07-14 04:29:31,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:31,329 INFO L225 Difference]: With dead ends: 6838 [2022-07-14 04:29:31,330 INFO L226 Difference]: Without dead ends: 6713 [2022-07-14 04:29:31,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:31,333 INFO L413 NwaCegarLoop]: 2769 mSDtfsCounter, 2736 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:31,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 8288 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:29:31,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2022-07-14 04:29:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 6713. [2022-07-14 04:29:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 4351 states have (on average 1.2247759135830842) internal successors, (5329), 4544 states have internal predecessors, (5329), 1958 states have call successors, (1958), 413 states have call predecessors, (1958), 401 states have return successors, (2345), 1860 states have call predecessors, (2345), 1955 states have call successors, (2345) [2022-07-14 04:29:31,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9632 transitions. [2022-07-14 04:29:31,632 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9632 transitions. Word has length 107 [2022-07-14 04:29:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:31,632 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9632 transitions. [2022-07-14 04:29:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 04:29:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9632 transitions. [2022-07-14 04:29:31,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-14 04:29:31,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:31,635 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:31,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-14 04:29:31,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:31,851 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:31,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:31,851 INFO L85 PathProgramCache]: Analyzing trace with hash 360188657, now seen corresponding path program 1 times [2022-07-14 04:29:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:31,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309976862] [2022-07-14 04:29:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:31,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:31,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:31,854 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:31,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 04:29:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:33,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-14 04:29:33,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-14 04:29:34,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:34,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:34,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309976862] [2022-07-14 04:29:34,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309976862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:34,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:34,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 04:29:34,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434974577] [2022-07-14 04:29:34,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:34,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 04:29:34,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:34,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 04:29:34,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-14 04:29:34,736 INFO L87 Difference]: Start difference. First operand 6713 states and 9632 transitions. Second operand has 12 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-14 04:29:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:37,771 INFO L93 Difference]: Finished difference Result 13419 states and 19252 transitions. [2022-07-14 04:29:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 04:29:37,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2022-07-14 04:29:37,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:37,823 INFO L225 Difference]: With dead ends: 13419 [2022-07-14 04:29:37,824 INFO L226 Difference]: Without dead ends: 6721 [2022-07-14 04:29:37,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-14 04:29:37,867 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 117 mSDsluCounter, 24240 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 26961 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:37,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 26961 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 04:29:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-07-14 04:29:38,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6713. [2022-07-14 04:29:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 4351 states have (on average 1.2245460813606068) internal successors, (5328), 4543 states have internal predecessors, (5328), 1958 states have call successors, (1958), 413 states have call predecessors, (1958), 401 states have return successors, (2345), 1860 states have call predecessors, (2345), 1955 states have call successors, (2345) [2022-07-14 04:29:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9631 transitions. [2022-07-14 04:29:38,167 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9631 transitions. Word has length 150 [2022-07-14 04:29:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:38,169 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9631 transitions. [2022-07-14 04:29:38,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-14 04:29:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9631 transitions. [2022-07-14 04:29:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-14 04:29:38,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:38,171 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:38,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:38,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:38,393 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:38,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:38,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1123620686, now seen corresponding path program 1 times [2022-07-14 04:29:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:38,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842581186] [2022-07-14 04:29:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:38,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:38,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:38,404 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:38,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 04:29:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:40,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-14 04:29:40,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-14 04:29:41,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:41,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:41,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842581186] [2022-07-14 04:29:41,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842581186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:41,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:41,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 04:29:41,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575182336] [2022-07-14 04:29:41,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:41,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 04:29:41,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:41,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 04:29:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-14 04:29:41,239 INFO L87 Difference]: Start difference. First operand 6713 states and 9631 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2022-07-14 04:29:45,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:45,831 INFO L93 Difference]: Finished difference Result 13981 states and 20071 transitions. [2022-07-14 04:29:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-14 04:29:45,832 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 154 [2022-07-14 04:29:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:45,865 INFO L225 Difference]: With dead ends: 13981 [2022-07-14 04:29:45,865 INFO L226 Difference]: Without dead ends: 7283 [2022-07-14 04:29:45,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2022-07-14 04:29:45,902 INFO L413 NwaCegarLoop]: 2827 mSDtfsCounter, 282 mSDsluCounter, 33432 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 36259 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:45,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 36259 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-14 04:29:45,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7283 states. [2022-07-14 04:29:46,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7283 to 6757. [2022-07-14 04:29:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 4383 states have (on average 1.2229066849190053) internal successors, (5360), 4575 states have internal predecessors, (5360), 1966 states have call successors, (1966), 413 states have call predecessors, (1966), 405 states have return successors, (2357), 1872 states have call predecessors, (2357), 1963 states have call successors, (2357) [2022-07-14 04:29:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9683 transitions. [2022-07-14 04:29:46,294 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9683 transitions. Word has length 154 [2022-07-14 04:29:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:46,294 INFO L495 AbstractCegarLoop]: Abstraction has 6757 states and 9683 transitions. [2022-07-14 04:29:46,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2022-07-14 04:29:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9683 transitions. [2022-07-14 04:29:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-14 04:29:46,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:46,296 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:46,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-14 04:29:46,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:46,523 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:46,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2006974356, now seen corresponding path program 1 times [2022-07-14 04:29:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:46,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581139128] [2022-07-14 04:29:46,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:46,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:46,532 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:46,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 04:29:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:48,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:29:48,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 04:29:48,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:48,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:48,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581139128] [2022-07-14 04:29:48,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581139128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:48,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:48,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:29:48,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732677994] [2022-07-14 04:29:48,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:48,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:29:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:29:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:29:48,421 INFO L87 Difference]: Start difference. First operand 6757 states and 9683 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 04:29:50,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:29:50,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:50,654 INFO L93 Difference]: Finished difference Result 14290 states and 20557 transitions. [2022-07-14 04:29:50,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:29:50,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-14 04:29:50,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:50,687 INFO L225 Difference]: With dead ends: 14290 [2022-07-14 04:29:50,687 INFO L226 Difference]: Without dead ends: 7552 [2022-07-14 04:29:50,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:29:50,719 INFO L413 NwaCegarLoop]: 3142 mSDtfsCounter, 293 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:50,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 5917 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-14 04:29:50,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2022-07-14 04:29:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 7536. [2022-07-14 04:29:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 4971 states have (on average 1.2295312814323074) internal successors, (6112), 5179 states have internal predecessors, (6112), 2157 states have call successors, (2157), 413 states have call predecessors, (2157), 405 states have return successors, (2570), 2057 states have call predecessors, (2570), 2154 states have call successors, (2570) [2022-07-14 04:29:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 10839 transitions. [2022-07-14 04:29:51,257 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 10839 transitions. Word has length 158 [2022-07-14 04:29:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:51,257 INFO L495 AbstractCegarLoop]: Abstraction has 7536 states and 10839 transitions. [2022-07-14 04:29:51,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 04:29:51,257 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 10839 transitions. [2022-07-14 04:29:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-14 04:29:51,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:51,259 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:51,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-14 04:29:51,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:51,484 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:29:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash -220279145, now seen corresponding path program 1 times [2022-07-14 04:29:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:51,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126595706] [2022-07-14 04:29:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:51,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:51,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:51,487 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:51,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 04:29:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:53,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-14 04:29:53,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-14 04:29:54,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:54,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:54,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126595706] [2022-07-14 04:29:54,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126595706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:54,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:54,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-14 04:29:54,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712036411] [2022-07-14 04:29:54,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:54,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 04:29:54,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:54,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 04:29:54,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-07-14 04:29:54,418 INFO L87 Difference]: Start difference. First operand 7536 states and 10839 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2022-07-14 04:29:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:59,531 INFO L93 Difference]: Finished difference Result 15659 states and 22563 transitions. [2022-07-14 04:29:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-14 04:29:59,532 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 162 [2022-07-14 04:29:59,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:59,563 INFO L225 Difference]: With dead ends: 15659 [2022-07-14 04:29:59,564 INFO L226 Difference]: Without dead ends: 8138 [2022-07-14 04:29:59,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-07-14 04:29:59,593 INFO L413 NwaCegarLoop]: 2907 mSDtfsCounter, 418 mSDsluCounter, 37222 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 40129 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:59,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 40129 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-14 04:29:59,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8138 states. [2022-07-14 04:29:59,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8138 to 7544. [2022-07-14 04:29:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 4975 states have (on average 1.2293467336683417) internal successors, (6116), 5187 states have internal predecessors, (6116), 2157 states have call successors, (2157), 413 states have call predecessors, (2157), 409 states have return successors, (2586), 2057 states have call predecessors, (2586), 2154 states have call successors, (2586) [2022-07-14 04:29:59,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 10859 transitions. [2022-07-14 04:29:59,959 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 10859 transitions. Word has length 162 [2022-07-14 04:29:59,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:59,959 INFO L495 AbstractCegarLoop]: Abstraction has 7544 states and 10859 transitions. [2022-07-14 04:29:59,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2022-07-14 04:29:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 10859 transitions. [2022-07-14 04:29:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-14 04:29:59,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:59,963 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:30:00,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 04:30:00,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:30:00,175 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:30:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:30:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1246889559, now seen corresponding path program 1 times [2022-07-14 04:30:00,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:30:00,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200099885] [2022-07-14 04:30:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:30:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:30:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:30:00,179 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:30:00,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 04:30:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:30:02,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-14 04:30:02,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:30:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-14 04:30:04,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:30:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 04:30:08,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:30:08,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200099885] [2022-07-14 04:30:08,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200099885] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 04:30:08,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 04:30:08,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 25 [2022-07-14 04:30:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365688964] [2022-07-14 04:30:08,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 04:30:08,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-14 04:30:08,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:30:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-14 04:30:08,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-07-14 04:30:08,291 INFO L87 Difference]: Start difference. First operand 7544 states and 10859 transitions. Second operand has 25 states, 20 states have (on average 6.35) internal successors, (127), 18 states have internal predecessors, (127), 10 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (37), 11 states have call predecessors, (37), 8 states have call successors, (37) [2022-07-14 04:30:14,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:16,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:17,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:19,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:24,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:26,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:28,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:30,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:35,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:30:35,192 INFO L93 Difference]: Finished difference Result 14355 states and 20643 transitions. [2022-07-14 04:30:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 04:30:35,193 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 6.35) internal successors, (127), 18 states have internal predecessors, (127), 10 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (37), 11 states have call predecessors, (37), 8 states have call successors, (37) Word has length 181 [2022-07-14 04:30:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:30:35,220 INFO L225 Difference]: With dead ends: 14355 [2022-07-14 04:30:35,221 INFO L226 Difference]: Without dead ends: 6830 [2022-07-14 04:30:35,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2022-07-14 04:30:35,255 INFO L413 NwaCegarLoop]: 2751 mSDtfsCounter, 1127 mSDsluCounter, 42062 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 341 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 44813 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:30:35,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 44813 Invalid, 1385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [341 Valid, 1041 Invalid, 3 Unknown, 0 Unchecked, 25.3s Time] [2022-07-14 04:30:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2022-07-14 04:30:35,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 6753. [2022-07-14 04:30:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 4379 states have (on average 1.2180863210778716) internal successors, (5334), 4570 states have internal predecessors, (5334), 1963 states have call successors, (1963), 412 states have call predecessors, (1963), 408 states have return successors, (2370), 1870 states have call predecessors, (2370), 1960 states have call successors, (2370) [2022-07-14 04:30:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 9667 transitions. [2022-07-14 04:30:35,553 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 9667 transitions. Word has length 181 [2022-07-14 04:30:35,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:30:35,553 INFO L495 AbstractCegarLoop]: Abstraction has 6753 states and 9667 transitions. [2022-07-14 04:30:35,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 6.35) internal successors, (127), 18 states have internal predecessors, (127), 10 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (37), 11 states have call predecessors, (37), 8 states have call successors, (37) [2022-07-14 04:30:35,554 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 9667 transitions. [2022-07-14 04:30:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-14 04:30:35,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:30:35,557 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:30:35,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-14 04:30:35,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:30:35,772 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:30:35,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:30:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash 106163740, now seen corresponding path program 1 times [2022-07-14 04:30:35,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:30:35,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89286771] [2022-07-14 04:30:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:30:35,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:30:35,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:30:35,781 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:30:35,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 04:30:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:30:39,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2855 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 04:30:39,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:30:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-14 04:30:39,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:30:39,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:30:39,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89286771] [2022-07-14 04:30:39,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89286771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:30:39,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:30:39,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 04:30:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803041166] [2022-07-14 04:30:39,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:30:39,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:30:39,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:30:39,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:30:39,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:30:39,350 INFO L87 Difference]: Start difference. First operand 6753 states and 9667 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 04:30:41,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:30:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:30:42,091 INFO L93 Difference]: Finished difference Result 13527 states and 19393 transitions. [2022-07-14 04:30:42,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 04:30:42,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 213 [2022-07-14 04:30:42,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:30:42,133 INFO L225 Difference]: With dead ends: 13527 [2022-07-14 04:30:42,133 INFO L226 Difference]: Without dead ends: 6793 [2022-07-14 04:30:42,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:30:42,168 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 18 mSDsluCounter, 8207 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10953 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:30:42,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10953 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 04:30:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2022-07-14 04:30:42,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6785. [2022-07-14 04:30:42,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6785 states, 4403 states have (on average 1.2168975698387463) internal successors, (5358), 4594 states have internal predecessors, (5358), 1971 states have call successors, (1971), 412 states have call predecessors, (1971), 408 states have return successors, (2378), 1878 states have call predecessors, (2378), 1968 states have call successors, (2378) [2022-07-14 04:30:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6785 states to 6785 states and 9707 transitions. [2022-07-14 04:30:42,558 INFO L78 Accepts]: Start accepts. Automaton has 6785 states and 9707 transitions. Word has length 213 [2022-07-14 04:30:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:30:42,558 INFO L495 AbstractCegarLoop]: Abstraction has 6785 states and 9707 transitions. [2022-07-14 04:30:42,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 04:30:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6785 states and 9707 transitions. [2022-07-14 04:30:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-14 04:30:42,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:30:42,563 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:30:42,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 04:30:42,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:30:42,779 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:30:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:30:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2089218343, now seen corresponding path program 1 times [2022-07-14 04:30:42,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:30:42,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859857515] [2022-07-14 04:30:42,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:30:42,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:30:42,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:30:42,783 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:30:42,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-14 04:30:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:30:45,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:30:45,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:30:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 04:30:45,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:30:45,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:30:45,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859857515] [2022-07-14 04:30:45,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859857515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:30:45,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:30:45,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:30:45,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799166612] [2022-07-14 04:30:45,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:30:45,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:30:45,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:30:45,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:30:45,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:30:45,968 INFO L87 Difference]: Start difference. First operand 6785 states and 9707 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 04:30:46,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:30:46,409 INFO L93 Difference]: Finished difference Result 14336 states and 20609 transitions. [2022-07-14 04:30:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:30:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 234 [2022-07-14 04:30:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:30:46,445 INFO L225 Difference]: With dead ends: 14336 [2022-07-14 04:30:46,445 INFO L226 Difference]: Without dead ends: 7570 [2022-07-14 04:30:46,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:30:46,483 INFO L413 NwaCegarLoop]: 3035 mSDtfsCounter, 274 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:30:46,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 5822 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:30:46,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2022-07-14 04:30:46,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 6789. [2022-07-14 04:30:46,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6789 states, 4407 states have (on average 1.216700703426367) internal successors, (5362), 4598 states have internal predecessors, (5362), 1971 states have call successors, (1971), 412 states have call predecessors, (1971), 408 states have return successors, (2378), 1878 states have call predecessors, (2378), 1968 states have call successors, (2378) [2022-07-14 04:30:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6789 states to 6789 states and 9711 transitions. [2022-07-14 04:30:46,929 INFO L78 Accepts]: Start accepts. Automaton has 6789 states and 9711 transitions. Word has length 234 [2022-07-14 04:30:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:30:46,929 INFO L495 AbstractCegarLoop]: Abstraction has 6789 states and 9711 transitions. [2022-07-14 04:30:46,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 04:30:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6789 states and 9711 transitions. [2022-07-14 04:30:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-14 04:30:46,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:30:46,932 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:30:46,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-14 04:30:47,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:30:47,152 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:30:47,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:30:47,152 INFO L85 PathProgramCache]: Analyzing trace with hash 310333392, now seen corresponding path program 1 times [2022-07-14 04:30:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:30:47,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57062459] [2022-07-14 04:30:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:30:47,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:30:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:30:47,156 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:30:47,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-14 04:30:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:30:50,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 04:30:50,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:30:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 90 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 04:30:50,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:30:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-14 04:30:50,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:30:50,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57062459] [2022-07-14 04:30:50,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57062459] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 04:30:50,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 04:30:50,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 04:30:50,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566243138] [2022-07-14 04:30:50,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 04:30:50,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 04:30:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:30:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 04:30:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 04:30:50,784 INFO L87 Difference]: Start difference. First operand 6789 states and 9711 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 04:30:53,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:30:53,754 INFO L93 Difference]: Finished difference Result 16683 states and 24155 transitions. [2022-07-14 04:30:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:30:53,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 237 [2022-07-14 04:30:53,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:30:53,801 INFO L225 Difference]: With dead ends: 16683 [2022-07-14 04:30:53,802 INFO L226 Difference]: Without dead ends: 9913 [2022-07-14 04:30:53,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:30:53,962 INFO L413 NwaCegarLoop]: 3645 mSDtfsCounter, 1558 mSDsluCounter, 6534 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 10179 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:30:53,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 10179 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 04:30:53,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2022-07-14 04:30:54,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 6825. [2022-07-14 04:30:54,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6825 states, 4443 states have (on average 1.2176457348638308) internal successors, (5410), 4634 states have internal predecessors, (5410), 1971 states have call successors, (1971), 412 states have call predecessors, (1971), 408 states have return successors, (2378), 1878 states have call predecessors, (2378), 1968 states have call successors, (2378) [2022-07-14 04:30:54,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6825 states to 6825 states and 9759 transitions. [2022-07-14 04:30:54,395 INFO L78 Accepts]: Start accepts. Automaton has 6825 states and 9759 transitions. Word has length 237 [2022-07-14 04:30:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:30:54,395 INFO L495 AbstractCegarLoop]: Abstraction has 6825 states and 9759 transitions. [2022-07-14 04:30:54,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 04:30:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6825 states and 9759 transitions. [2022-07-14 04:30:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-14 04:30:54,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:30:54,398 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:30:54,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-07-14 04:30:54,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:30:54,620 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:30:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:30:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash 845399729, now seen corresponding path program 1 times [2022-07-14 04:30:54,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:30:54,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744060972] [2022-07-14 04:30:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:30:54,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:30:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:30:54,623 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:30:54,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-14 04:30:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:30:58,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:30:58,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:30:58,299 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-14 04:30:58,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:30:58,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:30:58,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744060972] [2022-07-14 04:30:58,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744060972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:30:58,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:30:58,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 04:30:58,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023677531] [2022-07-14 04:30:58,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:30:58,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 04:30:58,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:30:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 04:30:58,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 04:30:58,302 INFO L87 Difference]: Start difference. First operand 6825 states and 9759 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-14 04:30:58,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:30:58,823 INFO L93 Difference]: Finished difference Result 13677 states and 19589 transitions. [2022-07-14 04:30:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 04:30:58,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 237 [2022-07-14 04:30:58,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:30:58,848 INFO L225 Difference]: With dead ends: 13677 [2022-07-14 04:30:58,848 INFO L226 Difference]: Without dead ends: 6871 [2022-07-14 04:30:58,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:30:58,873 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 231 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 7940 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:30:58,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 7940 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:30:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2022-07-14 04:30:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6843. [2022-07-14 04:30:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6843 states, 4453 states have (on average 1.2171569728273075) internal successors, (5420), 4644 states have internal predecessors, (5420), 1979 states have call successors, (1979), 412 states have call predecessors, (1979), 408 states have return successors, (2386), 1886 states have call predecessors, (2386), 1976 states have call successors, (2386) [2022-07-14 04:30:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6843 states to 6843 states and 9785 transitions. [2022-07-14 04:30:59,208 INFO L78 Accepts]: Start accepts. Automaton has 6843 states and 9785 transitions. Word has length 237 [2022-07-14 04:30:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:30:59,209 INFO L495 AbstractCegarLoop]: Abstraction has 6843 states and 9785 transitions. [2022-07-14 04:30:59,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-14 04:30:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 6843 states and 9785 transitions. [2022-07-14 04:30:59,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-14 04:30:59,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:30:59,211 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:30:59,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-14 04:30:59,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:30:59,432 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:30:59,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:30:59,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1147522126, now seen corresponding path program 1 times [2022-07-14 04:30:59,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:30:59,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273734487] [2022-07-14 04:30:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:30:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:30:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:30:59,436 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:30:59,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-14 04:31:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:31:03,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 04:31:03,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:31:03,508 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-14 04:31:03,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:31:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-14 04:31:03,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:31:03,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273734487] [2022-07-14 04:31:03,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273734487] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 04:31:03,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 04:31:03,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 04:31:03,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267784729] [2022-07-14 04:31:03,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 04:31:03,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 04:31:03,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:31:03,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 04:31:03,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-14 04:31:03,924 INFO L87 Difference]: Start difference. First operand 6843 states and 9785 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-14 04:31:04,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:31:04,738 INFO L93 Difference]: Finished difference Result 13673 states and 19589 transitions. [2022-07-14 04:31:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 04:31:04,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 238 [2022-07-14 04:31:04,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:31:04,764 INFO L225 Difference]: With dead ends: 13673 [2022-07-14 04:31:04,764 INFO L226 Difference]: Without dead ends: 6849 [2022-07-14 04:31:04,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-14 04:31:04,792 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 231 mSDsluCounter, 10372 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 13126 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:31:04,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 13126 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:31:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2022-07-14 04:31:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2022-07-14 04:31:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6849 states, 4459 states have (on average 1.216864767885176) internal successors, (5426), 4650 states have internal predecessors, (5426), 1979 states have call successors, (1979), 412 states have call predecessors, (1979), 408 states have return successors, (2386), 1886 states have call predecessors, (2386), 1976 states have call successors, (2386) [2022-07-14 04:31:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9791 transitions. [2022-07-14 04:31:05,137 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9791 transitions. Word has length 238 [2022-07-14 04:31:05,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:31:05,137 INFO L495 AbstractCegarLoop]: Abstraction has 6849 states and 9791 transitions. [2022-07-14 04:31:05,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-14 04:31:05,138 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9791 transitions. [2022-07-14 04:31:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-14 04:31:05,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:31:05,140 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:31:05,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-07-14 04:31:05,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:31:05,360 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:31:05,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:31:05,360 INFO L85 PathProgramCache]: Analyzing trace with hash 51871473, now seen corresponding path program 2 times [2022-07-14 04:31:05,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:31:05,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911208930] [2022-07-14 04:31:05,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 04:31:05,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:31:05,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:31:05,363 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:31:05,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process