./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN --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 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:45:08,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:45:08,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:45:08,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:45:08,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:45:08,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:45:08,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:45:08,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:45:08,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:45:08,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:45:08,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:45:08,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:45:08,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:45:08,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:45:08,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:45:08,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:45:08,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:45:08,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:45:08,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:45:08,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:45:08,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:45:08,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:45:08,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:45:08,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:45:08,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:45:08,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:45:08,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:45:08,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:45:08,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:45:08,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:45:08,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:45:08,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:45:08,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:45:08,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:45:08,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:45:08,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:45:08,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:45:08,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:45:08,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:45:08,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:45:08,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:45:08,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:45:08,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:45:08,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:45:08,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:45:08,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:45:08,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:45:08,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:45:08,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:45:08,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:45:08,683 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:45:08,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:45:08,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:45:08,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:45:08,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:45:08,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:45:08,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:45:08,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:45:08,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:45:08,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:45:08,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:45:08,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:45:08,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:45:08,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:45:08,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:45:08,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:45:08,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:45:08,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:45:08,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:45:08,690 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:45:08,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:45:08,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:45:08,692 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2022-11-20 11:45:09,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:45:09,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:45:09,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:45:09,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:45:09,078 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:45:09,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-20 11:45:12,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:45:13,605 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:45:13,605 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-20 11:45:13,680 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data/a4612e580/745d1ff2754041ee94bc58e778cf90c4/FLAG0c7474ac1 [2022-11-20 11:45:13,698 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data/a4612e580/745d1ff2754041ee94bc58e778cf90c4 [2022-11-20 11:45:13,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:45:13,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:45:13,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:45:13,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:45:13,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:45:13,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:45:13" (1/1) ... [2022-11-20 11:45:13,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306cb5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:13, skipping insertion in model container [2022-11-20 11:45:13,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:45:13" (1/1) ... [2022-11-20 11:45:13,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:45:13,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:45:14,900 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 11:45:14,912 INFO L158 Benchmark]: Toolchain (without parser) took 1206.72ms. Allocated memory is still 163.6MB. Free memory was 100.8MB in the beginning and 78.1MB in the end (delta: 22.7MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-20 11:45:14,912 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 88.2MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:45:14,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1203.86ms. Allocated memory is still 163.6MB. Free memory was 100.1MB in the beginning and 78.1MB in the end (delta: 22.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-11-20 11:45:14,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 88.2MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1203.86ms. Allocated memory is still 163.6MB. Free memory was 100.1MB in the beginning and 78.1MB in the end (delta: 22.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN --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 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:45:17,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:45:17,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:45:17,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:45:17,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:45:17,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:45:17,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:45:17,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:45:17,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:45:17,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:45:17,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:45:17,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:45:17,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:45:17,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:45:17,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:45:17,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:45:17,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:45:17,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:45:17,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:45:17,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:45:17,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:45:17,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:45:17,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:45:17,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:45:17,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:45:17,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:45:17,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:45:17,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:45:17,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:45:17,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:45:17,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:45:17,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:45:17,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:45:17,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:45:17,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:45:17,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:45:17,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:45:17,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:45:17,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:45:17,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:45:17,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:45:17,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:45:17,604 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:45:17,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:45:17,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:45:17,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:45:17,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:45:17,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:45:17,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:45:17,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:45:17,607 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:45:17,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:45:17,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:45:17,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:45:17,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:45:17,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:45:17,609 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:45:17,610 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:45:17,610 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:45:17,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:45:17,611 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:45:17,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:45:17,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:45:17,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:45:17,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:45:17,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:45:17,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:45:17,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:45:17,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:45:17,614 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:45:17,614 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:45:17,614 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:45:17,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:45:17,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:45:17,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:45:17,615 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232e8c8bdb70ee1ad9fec7edefe8ce3076fc3bc6f131163eee7a33dd2ac504a2 [2022-11-20 11:45:18,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:45:18,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:45:18,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:45:18,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:45:18,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:45:18,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-20 11:45:21,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:45:22,798 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:45:22,799 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-20 11:45:22,853 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data/1aac94a75/105f8914c6ea4675813ac55806916ecd/FLAGe3c221541 [2022-11-20 11:45:22,876 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/data/1aac94a75/105f8914c6ea4675813ac55806916ecd [2022-11-20 11:45:22,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:45:22,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:45:22,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:45:22,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:45:22,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:45:22,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:45:22" (1/1) ... [2022-11-20 11:45:22,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ec8387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:22, skipping insertion in model container [2022-11-20 11:45:22,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:45:22" (1/1) ... [2022-11-20 11:45:22,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:45:23,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:45:28,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2022-11-20 11:45:28,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2022-11-20 11:45:28,105 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2022-11-20 11:45:28,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2022-11-20 11:45:28,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:45:28,312 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:45:28,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:45:29,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2022-11-20 11:45:29,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2022-11-20 11:45:29,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2022-11-20 11:45:29,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2022-11-20 11:45:29,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:45:29,443 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:45:30,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445023,445036] [2022-11-20 11:45:30,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445189,445202] [2022-11-20 11:45:30,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445353,445366] [2022-11-20 11:45:30,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i[445518,445531] [2022-11-20 11:45:30,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:45:30,615 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:45:30,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30 WrapperNode [2022-11-20 11:45:30,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:45:30,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:45:30,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:45:30,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:45:30,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:30,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,229 INFO L138 Inliner]: procedures = 559, calls = 4003, calls flagged for inlining = 320, calls inlined = 309, statements flattened = 9605 [2022-11-20 11:45:31,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:45:31,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:45:31,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:45:31,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:45:31,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,778 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:45:31,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:45:31,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:45:31,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:45:31,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (1/1) ... [2022-11-20 11:45:31,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:45:31,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:45:31,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:45:31,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:45:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:45:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:45:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-11-20 11:45:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-11-20 11:45:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-11-20 11:45:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-11-20 11:45:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:45:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:45:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:45:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:45:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 11:45:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 11:45:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-20 11:45:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-20 11:45:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:45:31,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:45:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-11-20 11:45:31,985 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-11-20 11:45:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-11-20 11:45:32,062 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-11-20 11:45:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-20 11:45:32,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-20 11:45:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-20 11:45:32,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-20 11:45:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-20 11:45:32,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-20 11:45:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:45:32,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:45:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 11:45:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 11:45:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-11-20 11:45:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-11-20 11:45:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 11:45:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 11:45:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:45:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:45:32,064 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-11-20 11:45:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-11-20 11:45:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-11-20 11:45:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-11-20 11:45:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-20 11:45:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-20 11:45:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-11-20 11:45:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-11-20 11:45:32,065 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-11-20 11:45:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-11-20 11:45:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-11-20 11:45:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-11-20 11:45:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-20 11:45:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-20 11:45:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-11-20 11:45:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-11-20 11:45:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-11-20 11:45:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-11-20 11:45:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-20 11:45:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-20 11:45:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-20 11:45:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-20 11:45:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:45:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:45:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:45:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:45:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-11-20 11:45:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-11-20 11:45:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:45:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:45:32,068 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 11:45:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 11:45:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-11-20 11:45:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-11-20 11:45:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-20 11:45:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-20 11:45:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:45:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:45:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:45:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:45:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 11:45:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 11:45:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:45:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:45:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-20 11:45:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-20 11:45:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:45:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-20 11:45:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-20 11:45:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:45:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:45:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:45:32,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:45:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-11-20 11:45:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-11-20 11:45:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 11:45:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 11:45:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-20 11:45:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-20 11:45:32,072 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-11-20 11:45:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-11-20 11:45:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-11-20 11:45:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-11-20 11:45:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:45:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:45:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-11-20 11:45:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-11-20 11:45:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 11:45:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 11:45:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-11-20 11:45:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-11-20 11:45:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-11-20 11:45:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-11-20 11:45:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:45:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:45:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-11-20 11:45:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-11-20 11:45:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-11-20 11:45:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-11-20 11:45:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:45:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:45:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:45:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:45:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-11-20 11:45:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-11-20 11:45:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:45:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:45:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-11-20 11:45:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-11-20 11:45:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:45:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:45:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:45:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:45:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:45:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:45:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 11:45:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 11:45:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-11-20 11:45:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-11-20 11:45:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 11:45:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 11:45:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:45:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:45:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-20 11:45:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-20 11:45:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:45:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:45:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:45:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 11:45:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 11:45:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 11:45:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 11:45:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:45:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-20 11:45:32,084 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-20 11:45:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:45:32,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:45:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pm_mutex_of_cas [2022-11-20 11:45:32,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pm_mutex_of_cas [2022-11-20 11:45:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:45:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:45:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:45:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:45:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:45:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:45:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:45:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:45:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:45:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-11-20 11:45:32,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-11-20 11:45:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-11-20 11:45:32,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-11-20 11:45:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-20 11:45:32,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-20 11:45:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 11:45:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 11:45:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 11:45:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 11:45:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-20 11:45:32,089 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-20 11:45:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:45:32,089 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:45:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:45:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:45:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:45:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:45:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-11-20 11:45:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-11-20 11:45:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:45:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:45:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-11-20 11:45:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-11-20 11:45:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:45:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-11-20 11:45:32,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-11-20 11:45:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:45:32,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:45:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:45:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:45:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-11-20 11:45:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-11-20 11:45:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:45:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:45:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:45:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:45:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:45:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:45:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:45:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:45:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-11-20 11:45:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-11-20 11:45:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:45:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:45:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-11-20 11:45:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-11-20 11:45:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-11-20 11:45:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-11-20 11:45:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 11:45:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 11:45:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-20 11:45:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-20 11:45:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:45:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:45:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:45:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:45:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:45:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:45:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 11:45:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 11:45:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-11-20 11:45:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-11-20 11:45:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-11-20 11:45:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-11-20 11:45:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:45:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:45:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:45:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-11-20 11:45:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-11-20 11:45:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:45:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-11-20 11:45:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-11-20 11:45:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-11-20 11:45:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-11-20 11:45:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-20 11:45:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-20 11:45:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:45:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:45:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-11-20 11:45:32,103 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-11-20 11:45:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:45:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:45:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:45:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-20 11:45:32,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-20 11:45:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-11-20 11:45:32,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-11-20 11:45:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 11:45:32,105 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 11:45:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 11:45:32,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 11:45:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pm_mutex_of_cas [2022-11-20 11:45:32,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pm_mutex_of_cas [2022-11-20 11:45:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:45:32,106 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:45:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:45:32,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:45:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-11-20 11:45:32,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-11-20 11:45:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-11-20 11:45:32,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-11-20 11:45:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-11-20 11:45:32,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-11-20 11:45:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 11:45:32,108 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 11:45:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-11-20 11:45:32,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-11-20 11:45:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 11:45:32,109 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 11:45:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-20 11:45:32,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-20 11:45:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:45:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:45:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:45:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:45:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-11-20 11:45:32,110 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-11-20 11:45:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:45:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:45:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-11-20 11:45:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-11-20 11:45:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-11-20 11:45:32,112 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-11-20 11:45:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-20 11:45:32,112 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-20 11:45:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:45:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:45:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-11-20 11:45:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-11-20 11:45:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:45:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:45:32,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:45:32,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:45:32,114 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-11-20 11:45:32,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-11-20 11:45:32,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:45:32,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:45:32,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:45:32,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:45:32,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:45:32,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:45:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 11:45:32,116 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 11:45:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-11-20 11:45:32,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-11-20 11:45:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-11-20 11:45:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-11-20 11:45:32,117 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-11-20 11:45:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-11-20 11:45:32,117 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 11:45:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 11:45:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-11-20 11:45:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-11-20 11:45:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:45:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:45:32,118 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 11:45:32,119 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 11:45:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 11:45:32,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 11:45:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-11-20 11:45:32,119 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-11-20 11:45:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-20 11:45:32,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-20 11:45:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 11:45:32,120 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 11:45:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-11-20 11:45:32,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-11-20 11:45:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:45:32,121 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:45:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-20 11:45:32,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-20 11:45:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:45:32,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:45:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-20 11:45:32,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-20 11:45:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-20 11:45:32,122 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-20 11:45:33,738 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:45:33,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:45:38,844 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:52:08,153 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:52:08,595 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:52:08,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:52:08,628 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:52:08,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:52:08 BoogieIcfgContainer [2022-11-20 11:52:08,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:52:08,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:52:08,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:52:08,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:52:08,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:45:22" (1/3) ... [2022-11-20 11:52:08,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d94fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:52:08, skipping insertion in model container [2022-11-20 11:52:08,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:30" (2/3) ... [2022-11-20 11:52:08,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d94fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:52:08, skipping insertion in model container [2022-11-20 11:52:08,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:52:08" (3/3) ... [2022-11-20 11:52:08,655 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-sun-cassini.cil.i [2022-11-20 11:52:08,680 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:52:08,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:52:08,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:52:08,862 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@496375e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:52:08,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:52:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 3624 states, 2423 states have (on average 1.2851836566240198) internal successors, (3114), 2493 states have internal predecessors, (3114), 1045 states have call successors, (1045), 155 states have call predecessors, (1045), 154 states have return successors, (1040), 1028 states have call predecessors, (1040), 1040 states have call successors, (1040) [2022-11-20 11:52:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 11:52:08,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:08,925 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:08,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:52:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:08,931 INFO L85 PathProgramCache]: Analyzing trace with hash -680380882, now seen corresponding path program 1 times [2022-11-20 11:52:08,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:08,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910111305] [2022-11-20 11:52:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:08,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:08,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:09,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:52:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:13,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 3271 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:52:13,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-11-20 11:52:14,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:14,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:14,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910111305] [2022-11-20 11:52:14,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910111305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:14,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:14,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:52:14,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147243435] [2022-11-20 11:52:14,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:14,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:52:14,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:14,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:52:14,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:52:14,323 INFO L87 Difference]: Start difference. First operand has 3624 states, 2423 states have (on average 1.2851836566240198) internal successors, (3114), 2493 states have internal predecessors, (3114), 1045 states have call successors, (1045), 155 states have call predecessors, (1045), 154 states have return successors, (1040), 1028 states have call predecessors, (1040), 1040 states have call successors, (1040) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:52:16,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:18,400 INFO L93 Difference]: Finished difference Result 10708 states and 15576 transitions. [2022-11-20 11:52:18,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:52:18,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 156 [2022-11-20 11:52:18,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:18,512 INFO L225 Difference]: With dead ends: 10708 [2022-11-20 11:52:18,512 INFO L226 Difference]: Without dead ends: 7101 [2022-11-20 11:52:18,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:52:18,561 INFO L413 NwaCegarLoop]: 6170 mSDtfsCounter, 5051 mSDsluCounter, 5099 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5051 SdHoareTripleChecker+Valid, 11269 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:18,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5051 Valid, 11269 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:52:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7101 states. [2022-11-20 11:52:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7101 to 7097. [2022-11-20 11:52:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 4740 states have (on average 1.2753164556962024) internal successors, (6045), 4876 states have internal predecessors, (6045), 2049 states have call successors, (2049), 306 states have call predecessors, (2049), 305 states have return successors, (2046), 2022 states have call predecessors, (2046), 2046 states have call successors, (2046) [2022-11-20 11:52:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 10140 transitions. [2022-11-20 11:52:19,317 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 10140 transitions. Word has length 156 [2022-11-20 11:52:19,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:19,319 INFO L495 AbstractCegarLoop]: Abstraction has 7097 states and 10140 transitions. [2022-11-20 11:52:19,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:52:19,320 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 10140 transitions. [2022-11-20 11:52:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-20 11:52:19,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:19,330 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:19,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 11:52:19,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:19,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:52:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1660366995, now seen corresponding path program 1 times [2022-11-20 11:52:19,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:19,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92509697] [2022-11-20 11:52:19,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:19,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:19,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:19,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:19,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:52:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:24,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 3342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:52:24,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-11-20 11:52:25,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:25,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:25,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92509697] [2022-11-20 11:52:25,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92509697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:25,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:25,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:52:25,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143729221] [2022-11-20 11:52:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:25,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:52:25,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:52:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:52:25,292 INFO L87 Difference]: Start difference. First operand 7097 states and 10140 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:52:27,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:30,194 INFO L93 Difference]: Finished difference Result 14921 states and 21223 transitions. [2022-11-20 11:52:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:52:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 171 [2022-11-20 11:52:30,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:30,266 INFO L225 Difference]: With dead ends: 14921 [2022-11-20 11:52:30,267 INFO L226 Difference]: Without dead ends: 7853 [2022-11-20 11:52:30,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:52:30,317 INFO L413 NwaCegarLoop]: 5738 mSDtfsCounter, 3002 mSDsluCounter, 5065 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3002 SdHoareTripleChecker+Valid, 10803 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:30,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3002 Valid, 10803 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-20 11:52:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2022-11-20 11:52:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7836. [2022-11-20 11:52:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7836 states, 5324 states have (on average 1.2821187077385425) internal successors, (6826), 5473 states have internal predecessors, (6826), 2126 states have call successors, (2126), 384 states have call predecessors, (2126), 383 states have return successors, (2123), 2096 states have call predecessors, (2123), 2123 states have call successors, (2123) [2022-11-20 11:52:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 11075 transitions. [2022-11-20 11:52:30,897 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 11075 transitions. Word has length 171 [2022-11-20 11:52:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:30,900 INFO L495 AbstractCegarLoop]: Abstraction has 7836 states and 11075 transitions. [2022-11-20 11:52:30,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:52:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 11075 transitions. [2022-11-20 11:52:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-20 11:52:30,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:30,913 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:31,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:31,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:31,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:52:31,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash -82004842, now seen corresponding path program 1 times [2022-11-20 11:52:31,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:31,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004904029] [2022-11-20 11:52:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:31,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:31,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:31,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:31,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:52:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:36,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 3336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:52:36,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-11-20 11:52:36,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:36,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:36,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004904029] [2022-11-20 11:52:36,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004904029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:36,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:36,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:52:36,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764549562] [2022-11-20 11:52:36,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:36,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:52:36,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:36,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:52:36,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:52:36,721 INFO L87 Difference]: Start difference. First operand 7836 states and 11075 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:52:39,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:42,883 INFO L93 Difference]: Finished difference Result 19386 states and 27389 transitions. [2022-11-20 11:52:42,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:52:42,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 174 [2022-11-20 11:52:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:42,979 INFO L225 Difference]: With dead ends: 19386 [2022-11-20 11:52:42,987 INFO L226 Difference]: Without dead ends: 11579 [2022-11-20 11:52:43,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:52:43,029 INFO L413 NwaCegarLoop]: 6029 mSDtfsCounter, 4399 mSDsluCounter, 5009 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4399 SdHoareTripleChecker+Valid, 11038 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:43,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4399 Valid, 11038 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-20 11:52:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2022-11-20 11:52:43,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 11554. [2022-11-20 11:52:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11554 states, 7832 states have (on average 1.2840909090909092) internal successors, (10057), 8055 states have internal predecessors, (10057), 3129 states have call successors, (3129), 591 states have call predecessors, (3129), 590 states have return successors, (3129), 3086 states have call predecessors, (3129), 3126 states have call successors, (3129) [2022-11-20 11:52:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 16315 transitions. [2022-11-20 11:52:43,890 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 16315 transitions. Word has length 174 [2022-11-20 11:52:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:43,892 INFO L495 AbstractCegarLoop]: Abstraction has 11554 states and 16315 transitions. [2022-11-20 11:52:43,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:52:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 16315 transitions. [2022-11-20 11:52:43,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-20 11:52:43,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:43,900 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:43,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:44,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:44,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:52:44,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:44,123 INFO L85 PathProgramCache]: Analyzing trace with hash 32649193, now seen corresponding path program 1 times [2022-11-20 11:52:44,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:44,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719614861] [2022-11-20 11:52:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:44,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:44,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:44,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:44,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:52:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:49,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 3394 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:52:49,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-20 11:52:59,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:59,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:59,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719614861] [2022-11-20 11:52:59,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719614861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:59,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:59,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:52:59,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373022482] [2022-11-20 11:52:59,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:59,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:52:59,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:59,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:52:59,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:52:59,488 INFO L87 Difference]: Start difference. First operand 11554 states and 16315 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 11:53:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:01,419 INFO L93 Difference]: Finished difference Result 11560 states and 16320 transitions. [2022-11-20 11:53:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:53:01,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 210 [2022-11-20 11:53:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:01,511 INFO L225 Difference]: With dead ends: 11560 [2022-11-20 11:53:01,512 INFO L226 Difference]: Without dead ends: 11558 [2022-11-20 11:53:01,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:53:01,524 INFO L413 NwaCegarLoop]: 5124 mSDtfsCounter, 5039 mSDsluCounter, 10244 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 15368 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:01,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5040 Valid, 15368 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:53:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-11-20 11:53:02,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 11558. [2022-11-20 11:53:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11558 states, 7835 states have (on average 1.2839821314613913) internal successors, (10060), 8058 states have internal predecessors, (10060), 3129 states have call successors, (3129), 592 states have call predecessors, (3129), 591 states have return successors, (3129), 3086 states have call predecessors, (3129), 3126 states have call successors, (3129) [2022-11-20 11:53:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11558 states to 11558 states and 16318 transitions. [2022-11-20 11:53:02,648 INFO L78 Accepts]: Start accepts. Automaton has 11558 states and 16318 transitions. Word has length 210 [2022-11-20 11:53:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:02,653 INFO L495 AbstractCegarLoop]: Abstraction has 11558 states and 16318 transitions. [2022-11-20 11:53:02,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 11:53:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 11558 states and 16318 transitions. [2022-11-20 11:53:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-20 11:53:02,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:02,661 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:02,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:02,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:02,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:53:02,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:02,862 INFO L85 PathProgramCache]: Analyzing trace with hash -434795905, now seen corresponding path program 1 times [2022-11-20 11:53:02,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:02,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905593391] [2022-11-20 11:53:02,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:02,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:02,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:02,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:02,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:53:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:07,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 3401 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:07,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-20 11:53:18,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-11-20 11:53:22,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:22,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905593391] [2022-11-20 11:53:22,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905593391] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:22,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:53:22,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:53:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507700057] [2022-11-20 11:53:22,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:22,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:53:22,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:22,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:53:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:53:22,343 INFO L87 Difference]: Start difference. First operand 11558 states and 16318 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:53:24,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:24,827 INFO L93 Difference]: Finished difference Result 11564 states and 16323 transitions. [2022-11-20 11:53:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:53:24,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2022-11-20 11:53:24,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:24,904 INFO L225 Difference]: With dead ends: 11564 [2022-11-20 11:53:24,905 INFO L226 Difference]: Without dead ends: 11562 [2022-11-20 11:53:24,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:53:24,917 INFO L413 NwaCegarLoop]: 5127 mSDtfsCounter, 5068 mSDsluCounter, 10243 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 15370 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:24,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5070 Valid, 15370 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:53:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11562 states. [2022-11-20 11:53:26,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11562 to 11562. [2022-11-20 11:53:26,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11562 states, 7838 states have (on average 1.2838734371013014) internal successors, (10063), 8061 states have internal predecessors, (10063), 3129 states have call successors, (3129), 593 states have call predecessors, (3129), 592 states have return successors, (3129), 3086 states have call predecessors, (3129), 3126 states have call successors, (3129) [2022-11-20 11:53:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11562 states to 11562 states and 16321 transitions. [2022-11-20 11:53:26,215 INFO L78 Accepts]: Start accepts. Automaton has 11562 states and 16321 transitions. Word has length 215 [2022-11-20 11:53:26,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:26,216 INFO L495 AbstractCegarLoop]: Abstraction has 11562 states and 16321 transitions. [2022-11-20 11:53:26,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:53:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 11562 states and 16321 transitions. [2022-11-20 11:53:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-20 11:53:26,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:26,229 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:26,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:26,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:26,454 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:53:26,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:26,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1274120855, now seen corresponding path program 1 times [2022-11-20 11:53:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:26,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750128194] [2022-11-20 11:53:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:26,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:26,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:26,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:26,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:53:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:31,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 3408 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:31,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-11-20 11:53:42,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-11-20 11:53:46,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:46,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750128194] [2022-11-20 11:53:46,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750128194] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:46,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:53:46,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:53:46,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996787792] [2022-11-20 11:53:46,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:46,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:53:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:46,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:53:46,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:53:46,602 INFO L87 Difference]: Start difference. First operand 11562 states and 16321 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:53:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:49,165 INFO L93 Difference]: Finished difference Result 11568 states and 16326 transitions. [2022-11-20 11:53:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:53:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2022-11-20 11:53:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:49,239 INFO L225 Difference]: With dead ends: 11568 [2022-11-20 11:53:49,239 INFO L226 Difference]: Without dead ends: 11564 [2022-11-20 11:53:49,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:53:49,251 INFO L413 NwaCegarLoop]: 5127 mSDtfsCounter, 5068 mSDsluCounter, 10243 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 15370 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:49,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 15370 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:53:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11564 states. [2022-11-20 11:53:50,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11564 to 11564. [2022-11-20 11:53:50,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11564 states, 7840 states have (on average 1.2836734693877552) internal successors, (10064), 8062 states have internal predecessors, (10064), 3129 states have call successors, (3129), 594 states have call predecessors, (3129), 592 states have return successors, (3129), 3086 states have call predecessors, (3129), 3126 states have call successors, (3129) [2022-11-20 11:53:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11564 states to 11564 states and 16322 transitions. [2022-11-20 11:53:50,533 INFO L78 Accepts]: Start accepts. Automaton has 11564 states and 16322 transitions. Word has length 220 [2022-11-20 11:53:50,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:50,534 INFO L495 AbstractCegarLoop]: Abstraction has 11564 states and 16322 transitions. [2022-11-20 11:53:50,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:53:50,534 INFO L276 IsEmpty]: Start isEmpty. Operand 11564 states and 16322 transitions. [2022-11-20 11:53:50,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-20 11:53:50,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:50,543 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:50,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:50,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:50,770 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:53:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1098718081, now seen corresponding path program 1 times [2022-11-20 11:53:50,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:50,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786704013] [2022-11-20 11:53:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:50,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:50,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:50,779 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:50,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:53:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:56,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 3415 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:56,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:07,897 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-11-20 11:54:07,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:54:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-11-20 11:54:12,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:12,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786704013] [2022-11-20 11:54:12,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786704013] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:54:12,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:54:12,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:54:12,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97037933] [2022-11-20 11:54:12,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:12,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:54:12,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:12,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:54:12,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:54:12,036 INFO L87 Difference]: Start difference. First operand 11564 states and 16322 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:54:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:14,263 INFO L93 Difference]: Finished difference Result 14115 states and 19798 transitions. [2022-11-20 11:54:14,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:54:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 225 [2022-11-20 11:54:14,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:14,355 INFO L225 Difference]: With dead ends: 14115 [2022-11-20 11:54:14,355 INFO L226 Difference]: Without dead ends: 14062 [2022-11-20 11:54:14,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:54:14,370 INFO L413 NwaCegarLoop]: 6246 mSDtfsCounter, 4667 mSDsluCounter, 14596 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 20842 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:14,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4667 Valid, 20842 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:54:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14062 states. [2022-11-20 11:54:16,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14062 to 14062. [2022-11-20 11:54:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14062 states, 9463 states have (on average 1.2722181126492655) internal successors, (12039), 9710 states have internal predecessors, (12039), 3840 states have call successors, (3840), 757 states have call predecessors, (3840), 757 states have return successors, (3843), 3804 states have call predecessors, (3843), 3840 states have call successors, (3843) [2022-11-20 11:54:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14062 states to 14062 states and 19722 transitions. [2022-11-20 11:54:16,166 INFO L78 Accepts]: Start accepts. Automaton has 14062 states and 19722 transitions. Word has length 225 [2022-11-20 11:54:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:16,168 INFO L495 AbstractCegarLoop]: Abstraction has 14062 states and 19722 transitions. [2022-11-20 11:54:16,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:54:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 14062 states and 19722 transitions. [2022-11-20 11:54:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-20 11:54:16,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:16,182 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:16,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:16,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:16,406 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:54:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:16,407 INFO L85 PathProgramCache]: Analyzing trace with hash -444369982, now seen corresponding path program 1 times [2022-11-20 11:54:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:16,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292196599] [2022-11-20 11:54:16,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:16,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:16,417 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:16,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:54:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:22,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 3482 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:54:22,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-11-20 11:54:24,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:24,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:24,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292196599] [2022-11-20 11:54:24,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292196599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:24,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:24,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:24,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488318322] [2022-11-20 11:54:24,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:24,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:54:24,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:24,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:54:24,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:24,566 INFO L87 Difference]: Start difference. First operand 14062 states and 19722 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 11:54:26,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:30,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:30,929 INFO L93 Difference]: Finished difference Result 30338 states and 42542 transitions. [2022-11-20 11:54:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:54:30,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 233 [2022-11-20 11:54:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:31,025 INFO L225 Difference]: With dead ends: 30338 [2022-11-20 11:54:31,025 INFO L226 Difference]: Without dead ends: 17655 [2022-11-20 11:54:31,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:31,079 INFO L413 NwaCegarLoop]: 8050 mSDtfsCounter, 2956 mSDsluCounter, 5029 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 13079 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:31,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 13079 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-20 11:54:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17655 states. [2022-11-20 11:54:32,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17655 to 17649. [2022-11-20 11:54:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17649 states, 11949 states have (on average 1.2761737383881497) internal successors, (15249), 12261 states have internal predecessors, (15249), 4727 states have call successors, (4727), 971 states have call predecessors, (4727), 971 states have return successors, (4730), 4681 states have call predecessors, (4730), 4727 states have call successors, (4730) [2022-11-20 11:54:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17649 states to 17649 states and 24706 transitions. [2022-11-20 11:54:32,833 INFO L78 Accepts]: Start accepts. Automaton has 17649 states and 24706 transitions. Word has length 233 [2022-11-20 11:54:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:32,834 INFO L495 AbstractCegarLoop]: Abstraction has 17649 states and 24706 transitions. [2022-11-20 11:54:32,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 11:54:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 17649 states and 24706 transitions. [2022-11-20 11:54:32,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-20 11:54:32,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:32,858 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:32,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:33,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:33,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:54:33,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1785579231, now seen corresponding path program 1 times [2022-11-20 11:54:33,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:33,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094552360] [2022-11-20 11:54:33,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:33,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:33,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:33,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:33,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:54:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:38,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:54:38,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-11-20 11:54:39,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:39,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:39,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094552360] [2022-11-20 11:54:39,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094552360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:39,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:39,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:39,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022923068] [2022-11-20 11:54:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:39,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:54:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:39,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:54:39,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:39,965 INFO L87 Difference]: Start difference. First operand 17649 states and 24706 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:54:42,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:46,518 INFO L93 Difference]: Finished difference Result 37501 states and 52488 transitions. [2022-11-20 11:54:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:54:46,519 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), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 307 [2022-11-20 11:54:46,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:46,644 INFO L225 Difference]: With dead ends: 37501 [2022-11-20 11:54:46,645 INFO L226 Difference]: Without dead ends: 21231 [2022-11-20 11:54:46,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:46,711 INFO L413 NwaCegarLoop]: 8061 mSDtfsCounter, 2968 mSDsluCounter, 5036 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 13097 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:46,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2968 Valid, 13097 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-20 11:54:46,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21231 states. [2022-11-20 11:54:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21231 to 21225. [2022-11-20 11:54:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21225 states, 14427 states have (on average 1.2789214666943924) internal successors, (18451), 14804 states have internal predecessors, (18451), 5611 states have call successors, (5611), 1185 states have call predecessors, (5611), 1185 states have return successors, (5614), 5555 states have call predecessors, (5614), 5611 states have call successors, (5614) [2022-11-20 11:54:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21225 states to 21225 states and 29676 transitions. [2022-11-20 11:54:49,152 INFO L78 Accepts]: Start accepts. Automaton has 21225 states and 29676 transitions. Word has length 307 [2022-11-20 11:54:49,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:49,154 INFO L495 AbstractCegarLoop]: Abstraction has 21225 states and 29676 transitions. [2022-11-20 11:54:49,154 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), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:54:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 21225 states and 29676 transitions. [2022-11-20 11:54:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-20 11:54:49,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:49,180 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:49,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:49,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:49,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:54:49,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:49,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2115021279, now seen corresponding path program 1 times [2022-11-20 11:54:49,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:49,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395706595] [2022-11-20 11:54:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:49,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:49,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:49,420 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:49,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:54:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:55,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:54:55,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-11-20 11:54:56,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:56,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:56,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395706595] [2022-11-20 11:54:56,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395706595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:56,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:56,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:56,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668942024] [2022-11-20 11:54:56,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:56,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:54:56,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:54:56,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:56,450 INFO L87 Difference]: Start difference. First operand 21225 states and 29676 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:54:58,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:03,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:03,765 INFO L93 Difference]: Finished difference Result 48025 states and 67144 transitions. [2022-11-20 11:55:03,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:03,765 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), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 307 [2022-11-20 11:55:03,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:03,995 INFO L225 Difference]: With dead ends: 48025 [2022-11-20 11:55:03,995 INFO L226 Difference]: Without dead ends: 28179 [2022-11-20 11:55:04,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:04,067 INFO L413 NwaCegarLoop]: 9096 mSDtfsCounter, 4595 mSDsluCounter, 4465 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4595 SdHoareTripleChecker+Valid, 13561 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:04,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4595 Valid, 13561 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-20 11:55:04,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28179 states. [2022-11-20 11:55:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28179 to 28173. [2022-11-20 11:55:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28173 states, 19047 states have (on average 1.273743896676642) internal successors, (24261), 19539 states have internal predecessors, (24261), 7546 states have call successors, (7546), 1578 states have call predecessors, (7546), 1578 states have return successors, (7549), 7476 states have call predecessors, (7549), 7546 states have call successors, (7549) [2022-11-20 11:55:07,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28173 states to 28173 states and 39356 transitions. [2022-11-20 11:55:07,096 INFO L78 Accepts]: Start accepts. Automaton has 28173 states and 39356 transitions. Word has length 307 [2022-11-20 11:55:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:07,097 INFO L495 AbstractCegarLoop]: Abstraction has 28173 states and 39356 transitions. [2022-11-20 11:55:07,098 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), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:55:07,098 INFO L276 IsEmpty]: Start isEmpty. Operand 28173 states and 39356 transitions. [2022-11-20 11:55:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-20 11:55:07,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:07,134 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:07,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:07,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:07,351 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:55:07,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:07,352 INFO L85 PathProgramCache]: Analyzing trace with hash 664345904, now seen corresponding path program 1 times [2022-11-20 11:55:07,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:07,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451443596] [2022-11-20 11:55:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:07,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:07,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:07,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:07,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:55:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:13,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 3888 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:55:13,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2022-11-20 11:55:14,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:14,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:14,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451443596] [2022-11-20 11:55:14,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451443596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:14,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:14,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:14,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653420165] [2022-11-20 11:55:14,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:14,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:14,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:14,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:14,657 INFO L87 Difference]: Start difference. First operand 28173 states and 39356 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 11:55:16,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:22,626 INFO L93 Difference]: Finished difference Result 58548 states and 81790 transitions. [2022-11-20 11:55:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:22,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 363 [2022-11-20 11:55:22,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:22,759 INFO L225 Difference]: With dead ends: 58548 [2022-11-20 11:55:22,759 INFO L226 Difference]: Without dead ends: 31754 [2022-11-20 11:55:22,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:22,833 INFO L413 NwaCegarLoop]: 7527 mSDtfsCounter, 2970 mSDsluCounter, 5035 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 12562 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:22,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 12562 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 11:55:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31754 states. [2022-11-20 11:55:25,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31754 to 31748. [2022-11-20 11:55:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31748 states, 21525 states have (on average 1.2758652729384437) internal successors, (27463), 22082 states have internal predecessors, (27463), 8430 states have call successors, (8430), 1791 states have call predecessors, (8430), 1791 states have return successors, (8433), 8350 states have call predecessors, (8433), 8430 states have call successors, (8433) [2022-11-20 11:55:25,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31748 states to 31748 states and 44326 transitions. [2022-11-20 11:55:25,844 INFO L78 Accepts]: Start accepts. Automaton has 31748 states and 44326 transitions. Word has length 363 [2022-11-20 11:55:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:25,845 INFO L495 AbstractCegarLoop]: Abstraction has 31748 states and 44326 transitions. [2022-11-20 11:55:25,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 11:55:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 31748 states and 44326 transitions. [2022-11-20 11:55:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-20 11:55:25,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:25,881 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:25,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:26,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:26,082 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:55:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 269979118, now seen corresponding path program 1 times [2022-11-20 11:55:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:26,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763674270] [2022-11-20 11:55:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:26,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:26,093 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:26,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87caef63-e97e-4afb-a129-5bdd06889cdd/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:55:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:32,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 3888 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:55:32,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2022-11-20 11:55:33,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:33,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:33,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763674270] [2022-11-20 11:55:33,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763674270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:33,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:33,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:33,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190360533] [2022-11-20 11:55:33,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:33,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:33,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:33,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:33,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:33,424 INFO L87 Difference]: Start difference. First operand 31748 states and 44326 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 11:55:35,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:41,050 INFO L93 Difference]: Finished difference Result 65722 states and 91760 transitions. [2022-11-20 11:55:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:41,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 363 [2022-11-20 11:55:41,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:41,199 INFO L225 Difference]: With dead ends: 65722 [2022-11-20 11:55:41,199 INFO L226 Difference]: Without dead ends: 35353 [2022-11-20 11:55:41,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:41,272 INFO L413 NwaCegarLoop]: 8064 mSDtfsCounter, 2983 mSDsluCounter, 5036 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2983 SdHoareTripleChecker+Valid, 13100 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:41,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2983 Valid, 13100 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 11:55:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35353 states.