./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- 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 20:45:48,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:45:48,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:45:48,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:45:48,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:45:48,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:45:48,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:45:48,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:45:48,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:45:48,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:45:48,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:45:48,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:45:48,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:45:48,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:45:48,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:45:48,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:45:48,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:45:48,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:45:48,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:45:48,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:45:48,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:45:48,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:45:48,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:45:48,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:45:48,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:45:48,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:45:48,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:45:48,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:45:48,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:45:48,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:45:48,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:45:48,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:45:48,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:45:48,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:45:48,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:45:48,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:45:48,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:45:48,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:45:48,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:45:48,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:45:48,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:45:48,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:45:48,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:45:48,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:45:48,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:45:48,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:45:48,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:45:48,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:45:48,542 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:45:48,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:45:48,542 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:45:48,543 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:45:48,544 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:45:48,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:45:48,544 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:45:48,544 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:45:48,545 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:45:48,545 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:45:48,545 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:45:48,545 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:45:48,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:45:48,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:45:48,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:45:48,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:45:48,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:45:48,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:45:48,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:45:48,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:45:48,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:45:48,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:45:48,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:45:48,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:45:48,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:45:48,550 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:45:48,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:45:48,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:45:48,550 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:45:48,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:45:48,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:45:48,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:45:48,551 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_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2022-11-20 20:45:48,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:45:48,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:45:48,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:45:48,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:45:48,857 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:45:48,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 20:45:51,866 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:45:52,588 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:45:52,589 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 20:45:52,637 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data/9a5084c0b/7f976614ba0449759a352e7a97182832/FLAG807bcb8aa [2022-11-20 20:45:52,653 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data/9a5084c0b/7f976614ba0449759a352e7a97182832 [2022-11-20 20:45:52,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:45:52,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:45:52,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:45:52,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:45:52,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:45:52,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:45:52" (1/1) ... [2022-11-20 20:45:52,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbdf32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:52, skipping insertion in model container [2022-11-20 20:45:52,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:45:52" (1/1) ... [2022-11-20 20:45:52,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:45:52,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:45:53,739 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 20:45:53,748 INFO L158 Benchmark]: Toolchain (without parser) took 1089.75ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 139.6MB in the end (delta: 5.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-20 20:45:53,749 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:45:53,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.31ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 139.6MB in the end (delta: 5.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-20 20:45:53,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.31ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 139.6MB in the end (delta: 5.5MB). Peak memory consumption was 75.5MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- 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 20:45:56,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:45:56,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:45:56,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:45:56,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:45:56,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:45:56,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:45:56,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:45:56,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:45:56,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:45:56,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:45:56,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:45:56,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:45:56,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:45:56,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:45:56,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:45:56,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:45:56,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:45:56,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:45:56,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:45:56,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:45:56,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:45:56,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:45:56,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:45:56,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:45:56,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:45:56,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:45:56,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:45:56,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:45:56,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:45:56,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:45:56,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:45:56,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:45:56,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:45:56,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:45:56,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:45:56,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:45:56,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:45:56,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:45:56,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:45:56,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:45:56,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:45:56,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:45:56,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:45:56,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:45:56,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:45:56,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:45:56,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:45:56,267 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:45:56,268 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:45:56,268 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:45:56,268 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:45:56,268 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:45:56,268 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:45:56,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:45:56,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:45:56,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:45:56,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:45:56,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:45:56,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:45:56,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:45:56,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:45:56,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:45:56,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:45:56,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:45:56,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:45:56,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:45:56,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:45:56,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:45:56,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:45:56,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:45:56,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:45:56,272 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:45:56,273 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:45:56,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:45:56,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:45:56,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:45:56,273 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_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2022-11-20 20:45:56,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:45:56,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:45:56,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:45:56,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:45:56,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:45:56,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 20:45:59,753 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:46:00,557 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:46:00,557 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 20:46:00,621 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data/9f817d147/2f7ae65e5ec14257be63e526cdad21f1/FLAG84e9671e9 [2022-11-20 20:46:00,637 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/data/9f817d147/2f7ae65e5ec14257be63e526cdad21f1 [2022-11-20 20:46:00,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:46:00,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:46:00,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:46:00,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:46:00,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:46:00,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:46:00" (1/1) ... [2022-11-20 20:46:00,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f92cacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:00, skipping insertion in model container [2022-11-20 20:46:00,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:46:00" (1/1) ... [2022-11-20 20:46:00,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:46:00,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:46:05,852 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-20 20:46:05,856 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-20 20:46:05,857 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-20 20:46:05,858 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-20 20:46:05,858 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-20 20:46:05,859 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-20 20:46:05,859 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-20 20:46:05,860 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-20 20:46:05,860 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-20 20:46:05,861 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-20 20:46:05,861 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-20 20:46:05,862 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-20 20:46:05,862 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-20 20:46:05,863 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-20 20:46:05,863 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-20 20:46:05,864 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-20 20:46:05,864 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-20 20:46:05,865 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-20 20:46:05,865 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-20 20:46:05,866 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-20 20:46:05,866 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-20 20:46:05,867 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-20 20:46:05,867 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-20 20:46:05,867 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-20 20:46:05,868 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-20 20:46:05,868 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-20 20:46:05,869 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-20 20:46:05,869 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-20 20:46:05,870 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-20 20:46:05,870 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-20 20:46:05,871 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-20 20:46:05,871 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-20 20:46:05,872 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-20 20:46:05,872 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-20 20:46:05,873 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-20 20:46:05,873 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-20 20:46:05,874 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-20 20:46:05,874 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-20 20:46:05,875 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-20 20:46:05,875 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-20 20:46:05,875 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-20 20:46:05,876 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-20 20:46:05,876 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-20 20:46:05,877 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-20 20:46:05,877 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-20 20:46:05,878 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-20 20:46:05,878 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-20 20:46:05,879 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-20 20:46:05,879 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-20 20:46:05,880 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-20 20:46:05,880 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-20 20:46:05,880 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-20 20:46:05,881 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-20 20:46:05,881 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-20 20:46:05,882 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-20 20:46:05,882 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-20 20:46:05,883 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-20 20:46:05,883 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-20 20:46:05,884 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-20 20:46:05,884 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-20 20:46:05,884 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-20 20:46:05,885 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-20 20:46:05,885 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-20 20:46:05,886 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-20 20:46:05,886 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-20 20:46:05,887 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-20 20:46:05,887 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-20 20:46:05,888 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-20 20:46:05,888 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-20 20:46:05,889 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-20 20:46:05,889 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-20 20:46:05,890 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-20 20:46:05,890 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-20 20:46:05,890 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-20 20:46:05,891 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-20 20:46:05,891 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-20 20:46:05,892 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-20 20:46:05,892 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-20 20:46:05,893 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-20 20:46:05,893 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-20 20:46:05,894 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-20 20:46:05,894 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-20 20:46:05,894 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-20 20:46:05,895 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-20 20:46:05,895 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-20 20:46:05,896 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-20 20:46:05,896 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-20 20:46:05,897 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-20 20:46:05,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:46:05,984 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:46:06,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:46:06,524 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-20 20:46:06,525 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-20 20:46:06,525 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-20 20:46:06,526 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-20 20:46:06,526 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-20 20:46:06,527 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-20 20:46:06,527 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-20 20:46:06,527 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-20 20:46:06,528 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-20 20:46:06,528 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-20 20:46:06,528 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-20 20:46:06,529 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-20 20:46:06,529 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-20 20:46:06,530 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-20 20:46:06,530 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-20 20:46:06,530 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-20 20:46:06,531 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-20 20:46:06,531 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-20 20:46:06,532 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-20 20:46:06,532 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-20 20:46:06,532 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-20 20:46:06,533 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-20 20:46:06,533 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-20 20:46:06,533 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-20 20:46:06,534 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-20 20:46:06,535 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-20 20:46:06,535 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-20 20:46:06,536 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-20 20:46:06,536 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-20 20:46:06,536 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-20 20:46:06,538 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-20 20:46:06,538 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-20 20:46:06,539 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-20 20:46:06,539 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-20 20:46:06,540 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-20 20:46:06,540 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-20 20:46:06,541 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-20 20:46:06,541 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-20 20:46:06,542 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-20 20:46:06,542 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-20 20:46:06,544 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-20 20:46:06,545 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-20 20:46:06,545 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-20 20:46:06,545 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-20 20:46:06,546 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-20 20:46:06,546 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-20 20:46:06,546 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-20 20:46:06,547 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-20 20:46:06,547 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-20 20:46:06,548 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-20 20:46:06,548 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-20 20:46:06,548 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-20 20:46:06,549 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-20 20:46:06,549 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-20 20:46:06,549 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-20 20:46:06,550 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-20 20:46:06,550 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-20 20:46:06,550 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-20 20:46:06,551 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-20 20:46:06,551 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-20 20:46:06,552 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-20 20:46:06,552 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-20 20:46:06,552 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-20 20:46:06,553 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-20 20:46:06,553 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-20 20:46:06,553 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-20 20:46:06,554 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-20 20:46:06,554 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-20 20:46:06,554 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-20 20:46:06,555 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-20 20:46:06,555 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-20 20:46:06,555 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-20 20:46:06,556 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-20 20:46:06,556 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-20 20:46:06,557 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-20 20:46:06,557 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-20 20:46:06,557 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-20 20:46:06,558 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-20 20:46:06,558 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-20 20:46:06,558 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-20 20:46:06,559 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-20 20:46:06,559 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-20 20:46:06,559 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-20 20:46:06,560 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-20 20:46:06,560 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-20 20:46:06,560 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-20 20:46:06,561 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-20 20:46:06,561 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-20 20:46:06,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:46:06,604 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:46:07,224 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-20 20:46:07,225 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-20 20:46:07,225 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-20 20:46:07,226 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-20 20:46:07,226 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-20 20:46:07,227 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-20 20:46:07,227 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-20 20:46:07,227 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-20 20:46:07,228 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-20 20:46:07,228 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-20 20:46:07,228 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-20 20:46:07,229 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-20 20:46:07,229 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-20 20:46:07,230 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-20 20:46:07,230 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-20 20:46:07,230 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-20 20:46:07,231 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-20 20:46:07,231 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-20 20:46:07,232 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-20 20:46:07,232 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-20 20:46:07,232 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-20 20:46:07,233 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-20 20:46:07,233 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-20 20:46:07,234 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-20 20:46:07,234 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-20 20:46:07,234 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-20 20:46:07,235 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-20 20:46:07,235 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-20 20:46:07,236 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-20 20:46:07,236 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-20 20:46:07,236 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-20 20:46:07,237 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-20 20:46:07,237 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-20 20:46:07,237 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-20 20:46:07,238 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-20 20:46:07,238 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-20 20:46:07,238 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-20 20:46:07,239 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-20 20:46:07,239 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-20 20:46:07,240 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-20 20:46:07,240 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-20 20:46:07,240 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-20 20:46:07,241 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-20 20:46:07,241 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-20 20:46:07,241 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-20 20:46:07,266 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-20 20:46:07,266 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-20 20:46:07,266 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-20 20:46:07,267 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-20 20:46:07,267 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-20 20:46:07,268 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-20 20:46:07,268 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-20 20:46:07,268 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-20 20:46:07,269 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-20 20:46:07,269 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-20 20:46:07,270 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-20 20:46:07,270 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-20 20:46:07,270 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-20 20:46:07,271 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-20 20:46:07,271 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-20 20:46:07,271 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-20 20:46:07,272 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-20 20:46:07,272 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-20 20:46:07,272 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-20 20:46:07,273 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-20 20:46:07,273 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-20 20:46:07,273 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-20 20:46:07,274 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-20 20:46:07,274 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-20 20:46:07,275 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-20 20:46:07,275 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-20 20:46:07,275 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-20 20:46:07,276 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-20 20:46:07,276 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-20 20:46:07,276 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-20 20:46:07,277 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-20 20:46:07,277 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-20 20:46:07,277 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-20 20:46:07,278 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-20 20:46:07,278 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-20 20:46:07,278 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-20 20:46:07,279 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-20 20:46:07,279 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-20 20:46:07,280 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-20 20:46:07,280 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-20 20:46:07,280 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-20 20:46:07,281 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-20 20:46:07,281 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_08af611b-3003-4866-abb2-4569f5799777/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-20 20:46:07,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:46:07,547 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:46:07,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07 WrapperNode [2022-11-20 20:46:07,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:46:07,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:46:07,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:46:07,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:46:07,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:07,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:07,924 INFO L138 Inliner]: procedures = 729, calls = 4121, calls flagged for inlining = 352, calls inlined = 254, statements flattened = 7894 [2022-11-20 20:46:07,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:46:07,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:46:07,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:46:07,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:46:07,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:07,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:07,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:07,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:08,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:08,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:08,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:08,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:08,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:46:08,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:46:08,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:46:08,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:46:08,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (1/1) ... [2022-11-20 20:46:08,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:46:08,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:46:08,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:46:08,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:46:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___2 [2022-11-20 20:46:08,430 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___2 [2022-11-20 20:46:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___3 [2022-11-20 20:46:08,430 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___3 [2022-11-20 20:46:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure set_nlink [2022-11-20 20:46:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure set_nlink [2022-11-20 20:46:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_uncompress [2022-11-20 20:46:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_uncompress [2022-11-20 20:46:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-20 20:46:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 20:46:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 20:46:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-20 20:46:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-20 20:46:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:46:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:46:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 20:46:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 20:46:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure ll_rw_block [2022-11-20 20:46:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_rw_block [2022-11-20 20:46:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:46:08,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:46:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 20:46:08,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 20:46:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-20 20:46:08,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-20 20:46:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:46:08,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:46:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_finish_page [2022-11-20 20:46:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_finish_page [2022-11-20 20:46:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-20 20:46:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-20 20:46:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 20:46:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 20:46:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_uncompress [2022-11-20 20:46:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_uncompress [2022-11-20 20:46:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 20:46:08,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 20:46:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:46:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:46:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_data [2022-11-20 20:46:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_data [2022-11-20 20:46:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:46:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:46:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-20 20:46:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-20 20:46:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-20 20:46:08,436 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-20 20:46:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_inode [2022-11-20 20:46:08,436 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_inode [2022-11-20 20:46:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:46:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_free [2022-11-20 20:46:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_free [2022-11-20 20:46:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure init_special_inode [2022-11-20 20:46:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure init_special_inode [2022-11-20 20:46:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:46:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:46:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_free [2022-11-20 20:46:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_free [2022-11-20 20:46:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 20:46:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 20:46:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_frag_lookup [2022-11-20 20:46:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_frag_lookup [2022-11-20 20:46:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-20 20:46:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-20 20:46:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 20:46:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 20:46:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure init_once [2022-11-20 20:46:08,439 INFO L138 BoogieDeclarations]: Found implementation of procedure init_once [2022-11-20 20:46:08,439 INFO L130 BoogieDeclarations]: Found specification of procedure sb_bread [2022-11-20 20:46:08,439 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_bread [2022-11-20 20:46:08,439 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_init [2022-11-20 20:46:08,439 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_init [2022-11-20 20:46:08,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-20 20:46:08,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-20 20:46:08,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:46:08,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:46:08,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 20:46:08,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 20:46:08,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 20:46:08,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 20:46:08,440 INFO L130 BoogieDeclarations]: Found specification of procedure read_indexes [2022-11-20 20:46:08,440 INFO L138 BoogieDeclarations]: Found implementation of procedure read_indexes [2022-11-20 20:46:08,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-20 20:46:08,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-20 20:46:08,440 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-11-20 20:46:08,440 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-11-20 20:46:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 20:46:08,441 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 20:46:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 20:46:08,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 20:46:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 20:46:08,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 20:46:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 20:46:08,441 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 20:46:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_i [2022-11-20 20:46:08,441 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_i [2022-11-20 20:46:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 20:46:08,442 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 20:46:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 20:46:08,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 20:46:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_next_page [2022-11-20 20:46:08,442 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_next_page [2022-11-20 20:46:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 20:46:08,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 20:46:08,442 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_export_iget [2022-11-20 20:46:08,444 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_export_iget [2022-11-20 20:46:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:46:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 20:46:08,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 20:46:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_user_list [2022-11-20 20:46:08,444 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_user_list [2022-11-20 20:46:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-20 20:46:08,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-20 20:46:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_uncompress [2022-11-20 20:46:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_uncompress [2022-11-20 20:46:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:46:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:46:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:46:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:46:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 20:46:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:46:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:46:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:46:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:46:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:46:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_statfs [2022-11-20 20:46:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_statfs [2022-11-20 20:46:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure release_meta_index [2022-11-20 20:46:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure release_meta_index [2022-11-20 20:46:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-20 20:46:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-20 20:46:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 20:46:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 20:46:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_delete [2022-11-20 20:46:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_delete [2022-11-20 20:46:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_comp_opts [2022-11-20 20:46:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_comp_opts [2022-11-20 20:46:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 20:46:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 20:46:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:46:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 20:46:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 20:46:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:46:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:46:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_metadata [2022-11-20 20:46:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_metadata [2022-11-20 20:46:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:46:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_data [2022-11-20 20:46:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_data [2022-11-20 20:46:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure kill_block_super [2022-11-20 20:46:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_block_super [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-20 20:46:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-20 20:46:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:46:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_security_list [2022-11-20 20:46:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_security_list [2022-11-20 20:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:46:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-11-20 20:46:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-11-20 20:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageError [2022-11-20 20:46:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageError [2022-11-20 20:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_iget [2022-11-20 20:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_iget [2022-11-20 20:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xattr_get [2022-11-20 20:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xattr_get [2022-11-20 20:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_init [2022-11-20 20:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_init [2022-11-20 20:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 20:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 20:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_get_id [2022-11-20 20:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_get_id [2022-11-20 20:46:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-20 20:46:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-20 20:46:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-20 20:46:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-20 20:46:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-20 20:46:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-20 20:46:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 20:46:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 20:46:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 20:46:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 20:46:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_cache [2022-11-20 20:46:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_cache [2022-11-20 20:46:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:46:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 20:46:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 20:46:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-20 20:46:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-20 20:46:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 20:46:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 20:46:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:46:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure page_follow_link_light [2022-11-20 20:46:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure page_follow_link_light [2022-11-20 20:46:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh [2022-11-20 20:46:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh [2022-11-20 20:46:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_free [2022-11-20 20:46:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_free [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_symlink_readpage [2022-11-20 20:46:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_symlink_readpage [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 20:46:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 20:46:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 20:46:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 20:46:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:46:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:46:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_trusted_list [2022-11-20 20:46:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_trusted_list [2022-11-20 20:46:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 20:46:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 20:46:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 20:46:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 20:46:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 20:46:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 20:46:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 20:46:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 20:46:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-20 20:46:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-20 20:46:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_decompressor_destroy [2022-11-20 20:46:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_decompressor_destroy [2022-11-20 20:46:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_get [2022-11-20 20:46:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_get [2022-11-20 20:46:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 20:46:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 20:46:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 20:46:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 20:46:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_destroy_inode [2022-11-20 20:46:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_destroy_inode [2022-11-20 20:46:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:46:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:46:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 20:46:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 20:46:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readdir [2022-11-20 20:46:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readdir [2022-11-20 20:46:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 20:46:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 20:46:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:46:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_first_page [2022-11-20 20:46:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_first_page [2022-11-20 20:46:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:46:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readpage [2022-11-20 20:46:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readpage [2022-11-20 20:46:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:46:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:46:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:46:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:46:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-20 20:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-20 20:46:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_put [2022-11-20 20:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_put [2022-11-20 20:46:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2022-11-20 20:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2022-11-20 20:46:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 20:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 20:46:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-11-20 20:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-11-20 20:46:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_init [2022-11-20 20:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_init [2022-11-20 20:46:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 20:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 20:46:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 20:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 20:46:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_init [2022-11-20 20:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_init [2022-11-20 20:46:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:46:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 20:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 20:46:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure sb_getblk [2022-11-20 20:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_getblk [2022-11-20 20:46:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_comp_opts [2022-11-20 20:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_comp_opts [2022-11-20 20:46:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_put_super [2022-11-20 20:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_put_super [2022-11-20 20:46:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-20 20:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-20 20:46:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 20:46:09,626 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:46:09,633 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:46:15,001 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:47:39,246 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:47:39,268 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:47:39,269 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 20:47:39,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:47:39 BoogieIcfgContainer [2022-11-20 20:47:39,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:47:39,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:47:39,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:47:39,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:47:39,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:46:00" (1/3) ... [2022-11-20 20:47:39,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d331857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:47:39, skipping insertion in model container [2022-11-20 20:47:39,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07" (2/3) ... [2022-11-20 20:47:39,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d331857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:47:39, skipping insertion in model container [2022-11-20 20:47:39,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:47:39" (3/3) ... [2022-11-20 20:47:39,283 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 20:47:39,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:47:39,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-20 20:47:39,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:47:39,418 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=FINITE_AUTOMATA, 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;@2e4ccb53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:47:39,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-20 20:47:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 2499 states, 1694 states have (on average 1.3140495867768596) internal successors, (2226), 1787 states have internal predecessors, (2226), 643 states have call successors, (643), 129 states have call predecessors, (643), 128 states have return successors, (633), 616 states have call predecessors, (633), 633 states have call successors, (633) [2022-11-20 20:47:39,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 20:47:39,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:39,443 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:47:39,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:47:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1889858122, now seen corresponding path program 1 times [2022-11-20 20:47:39,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:39,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858465708] [2022-11-20 20:47:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:39,468 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 20:47:39,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:39,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:39,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:41,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 20:47:41,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:47:41,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:41,984 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:41,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858465708] [2022-11-20 20:47:41,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858465708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:41,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:47:41,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 20:47:41,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819463679] [2022-11-20 20:47:41,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:41,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:47:41,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:47:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:47:42,030 INFO L87 Difference]: Start difference. First operand has 2499 states, 1694 states have (on average 1.3140495867768596) internal successors, (2226), 1787 states have internal predecessors, (2226), 643 states have call successors, (643), 129 states have call predecessors, (643), 128 states have return successors, (633), 616 states have call predecessors, (633), 633 states have call successors, (633) Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 20:47:43,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:43,900 INFO L93 Difference]: Finished difference Result 5534 states and 8091 transitions. [2022-11-20 20:47:43,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:47:43,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2022-11-20 20:47:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:43,951 INFO L225 Difference]: With dead ends: 5534 [2022-11-20 20:47:43,951 INFO L226 Difference]: Without dead ends: 3021 [2022-11-20 20:47:43,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:47:43,983 INFO L413 NwaCegarLoop]: 3601 mSDtfsCounter, 1383 mSDsluCounter, 17346 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 20947 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:43,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 20947 Invalid, 679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [630 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 20:47:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2022-11-20 20:47:44,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2452. [2022-11-20 20:47:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2452 states, 1658 states have (on average 1.2708082026537997) internal successors, (2107), 1742 states have internal predecessors, (2107), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:47:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 3388 transitions. [2022-11-20 20:47:44,188 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 3388 transitions. Word has length 45 [2022-11-20 20:47:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:44,189 INFO L495 AbstractCegarLoop]: Abstraction has 2452 states and 3388 transitions. [2022-11-20 20:47:44,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 20:47:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 3388 transitions. [2022-11-20 20:47:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 20:47:44,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:44,192 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 20:47:44,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:44,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:44,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:47:44,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1374086282, now seen corresponding path program 1 times [2022-11-20 20:47:44,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:44,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663236979] [2022-11-20 20:47:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:44,414 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 20:47:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:44,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:44,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:46,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:47:46,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:47,034 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:47:47,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:47,034 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:47,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663236979] [2022-11-20 20:47:47,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663236979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:47,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:47:47,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:47:47,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172696130] [2022-11-20 20:47:47,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:47,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:47:47,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:47,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:47:47,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:47:47,039 INFO L87 Difference]: Start difference. First operand 2452 states and 3388 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:47:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:47,241 INFO L93 Difference]: Finished difference Result 2452 states and 3388 transitions. [2022-11-20 20:47:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:47:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 61 [2022-11-20 20:47:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:47,255 INFO L225 Difference]: With dead ends: 2452 [2022-11-20 20:47:47,255 INFO L226 Difference]: Without dead ends: 2450 [2022-11-20 20:47:47,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:47:47,259 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 3334 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 6704 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:47,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 6704 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:47,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2022-11-20 20:47:47,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2450. [2022-11-20 20:47:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 1657 states have (on average 1.2703681351840677) internal successors, (2105), 1740 states have internal predecessors, (2105), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:47:47,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3386 transitions. [2022-11-20 20:47:47,483 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3386 transitions. Word has length 61 [2022-11-20 20:47:47,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:47,483 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 3386 transitions. [2022-11-20 20:47:47,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:47:47,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3386 transitions. [2022-11-20 20:47:47,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 20:47:47,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:47,494 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:47:47,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:47,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:47,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:47:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1420885101, now seen corresponding path program 1 times [2022-11-20 20:47:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809756395] [2022-11-20 20:47:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:47,722 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 20:47:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:47,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:47,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:49,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:47:49,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:47:50,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:50,112 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:50,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809756395] [2022-11-20 20:47:50,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809756395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:50,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:47:50,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:47:50,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688434293] [2022-11-20 20:47:50,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:50,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:47:50,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:50,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:47:50,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:47:50,114 INFO L87 Difference]: Start difference. First operand 2450 states and 3386 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 20:47:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:50,332 INFO L93 Difference]: Finished difference Result 2450 states and 3386 transitions. [2022-11-20 20:47:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:47:50,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63 [2022-11-20 20:47:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:50,348 INFO L225 Difference]: With dead ends: 2450 [2022-11-20 20:47:50,350 INFO L226 Difference]: Without dead ends: 2448 [2022-11-20 20:47:50,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:47:50,356 INFO L413 NwaCegarLoop]: 3360 mSDtfsCounter, 3311 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 6718 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:50,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3313 Valid, 6718 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:50,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2022-11-20 20:47:50,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2448. [2022-11-20 20:47:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 1656 states have (on average 1.269927536231884) internal successors, (2103), 1738 states have internal predecessors, (2103), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:47:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3384 transitions. [2022-11-20 20:47:50,616 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3384 transitions. Word has length 63 [2022-11-20 20:47:50,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:50,619 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 3384 transitions. [2022-11-20 20:47:50,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 20:47:50,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3384 transitions. [2022-11-20 20:47:50,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 20:47:50,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:50,621 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:47:50,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:50,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:50,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:47:50,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash -65186547, now seen corresponding path program 1 times [2022-11-20 20:47:50,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:50,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535744565] [2022-11-20 20:47:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:50,846 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 20:47:50,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:50,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:50,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:52,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:47:52,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:47:53,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:53,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:53,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535744565] [2022-11-20 20:47:53,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535744565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:53,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:47:53,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:47:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211756201] [2022-11-20 20:47:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:53,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:47:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:47:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:47:53,340 INFO L87 Difference]: Start difference. First operand 2448 states and 3384 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:47:53,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:53,577 INFO L93 Difference]: Finished difference Result 2448 states and 3384 transitions. [2022-11-20 20:47:53,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:47:53,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 64 [2022-11-20 20:47:53,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:53,591 INFO L225 Difference]: With dead ends: 2448 [2022-11-20 20:47:53,592 INFO L226 Difference]: Without dead ends: 2446 [2022-11-20 20:47:53,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:47:53,596 INFO L413 NwaCegarLoop]: 3357 mSDtfsCounter, 3322 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:53,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 6701 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:53,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2022-11-20 20:47:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2446. [2022-11-20 20:47:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 1655 states have (on average 1.2694864048338368) internal successors, (2101), 1736 states have internal predecessors, (2101), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:47:53,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3382 transitions. [2022-11-20 20:47:53,825 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3382 transitions. Word has length 64 [2022-11-20 20:47:53,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:53,829 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 3382 transitions. [2022-11-20 20:47:53,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:47:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3382 transitions. [2022-11-20 20:47:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 20:47:53,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:53,832 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 20:47:53,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:54,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:54,056 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:47:54,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash -641249630, now seen corresponding path program 1 times [2022-11-20 20:47:54,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:54,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587556330] [2022-11-20 20:47:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:54,059 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 20:47:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:54,060 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:54,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:55,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:47:55,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:47:56,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:56,521 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:56,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587556330] [2022-11-20 20:47:56,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587556330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:56,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:47:56,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:47:56,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198884811] [2022-11-20 20:47:56,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:56,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:47:56,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:56,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:47:56,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:47:56,523 INFO L87 Difference]: Start difference. First operand 2446 states and 3382 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:47:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:56,776 INFO L93 Difference]: Finished difference Result 2446 states and 3382 transitions. [2022-11-20 20:47:56,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:47:56,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 67 [2022-11-20 20:47:56,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:56,791 INFO L225 Difference]: With dead ends: 2446 [2022-11-20 20:47:56,791 INFO L226 Difference]: Without dead ends: 2444 [2022-11-20 20:47:56,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:47:56,794 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 3312 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:56,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 6702 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:56,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2022-11-20 20:47:57,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2444. [2022-11-20 20:47:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 1654 states have (on average 1.2690447400241838) internal successors, (2099), 1734 states have internal predecessors, (2099), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:47:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3380 transitions. [2022-11-20 20:47:57,030 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3380 transitions. Word has length 67 [2022-11-20 20:47:57,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:57,031 INFO L495 AbstractCegarLoop]: Abstraction has 2444 states and 3380 transitions. [2022-11-20 20:47:57,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:47:57,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3380 transitions. [2022-11-20 20:47:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 20:47:57,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:57,033 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:47:57,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:57,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:57,255 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:47:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash 741314163, now seen corresponding path program 1 times [2022-11-20 20:47:57,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:57,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158837814] [2022-11-20 20:47:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:57,257 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 20:47:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:57,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:57,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:47:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:59,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:47:59,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:47:59,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:59,812 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158837814] [2022-11-20 20:47:59,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158837814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:59,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:47:59,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:47:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529987634] [2022-11-20 20:47:59,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:59,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:47:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:47:59,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:47:59,814 INFO L87 Difference]: Start difference. First operand 2444 states and 3380 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 20:48:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:00,106 INFO L93 Difference]: Finished difference Result 2444 states and 3380 transitions. [2022-11-20 20:48:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2022-11-20 20:48:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:00,119 INFO L225 Difference]: With dead ends: 2444 [2022-11-20 20:48:00,119 INFO L226 Difference]: Without dead ends: 2442 [2022-11-20 20:48:00,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:00,122 INFO L413 NwaCegarLoop]: 3354 mSDtfsCounter, 3299 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 6706 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:00,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 6706 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-11-20 20:48:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2442. [2022-11-20 20:48:00,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 1653 states have (on average 1.2686025408348458) internal successors, (2097), 1732 states have internal predecessors, (2097), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3378 transitions. [2022-11-20 20:48:00,355 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3378 transitions. Word has length 69 [2022-11-20 20:48:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:00,356 INFO L495 AbstractCegarLoop]: Abstraction has 2442 states and 3378 transitions. [2022-11-20 20:48:00,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 20:48:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3378 transitions. [2022-11-20 20:48:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 20:48:00,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:00,358 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:48:00,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:00,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:00,571 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash 552771449, now seen corresponding path program 1 times [2022-11-20 20:48:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:00,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141734769] [2022-11-20 20:48:00,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:00,574 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 20:48:00,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:00,575 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:00,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:02,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:02,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:48:02,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:02,928 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:02,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141734769] [2022-11-20 20:48:02,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141734769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:02,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:02,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:02,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787628961] [2022-11-20 20:48:02,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:02,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:02,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:02,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:02,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:02,931 INFO L87 Difference]: Start difference. First operand 2442 states and 3378 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:48:03,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:03,239 INFO L93 Difference]: Finished difference Result 2442 states and 3378 transitions. [2022-11-20 20:48:03,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:03,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2022-11-20 20:48:03,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:03,253 INFO L225 Difference]: With dead ends: 2442 [2022-11-20 20:48:03,254 INFO L226 Difference]: Without dead ends: 2440 [2022-11-20 20:48:03,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:03,257 INFO L413 NwaCegarLoop]: 3351 mSDtfsCounter, 3300 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 6699 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:03,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 6699 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:03,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2022-11-20 20:48:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2022-11-20 20:48:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 1652 states have (on average 1.2681598062953996) internal successors, (2095), 1730 states have internal predecessors, (2095), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3376 transitions. [2022-11-20 20:48:03,524 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3376 transitions. Word has length 70 [2022-11-20 20:48:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:03,526 INFO L495 AbstractCegarLoop]: Abstraction has 2440 states and 3376 transitions. [2022-11-20 20:48:03,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 20:48:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3376 transitions. [2022-11-20 20:48:03,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 20:48:03,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:03,531 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:03,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:03,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:03,745 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1713681588, now seen corresponding path program 1 times [2022-11-20 20:48:03,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:03,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736922937] [2022-11-20 20:48:03,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:03,747 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 20:48:03,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:03,748 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:03,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:05,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:05,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:06,115 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:06,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:06,115 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:06,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736922937] [2022-11-20 20:48:06,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736922937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:06,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:06,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:06,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673131314] [2022-11-20 20:48:06,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:06,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:06,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:06,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:06,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:06,118 INFO L87 Difference]: Start difference. First operand 2440 states and 3376 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 20:48:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:06,373 INFO L93 Difference]: Finished difference Result 2440 states and 3376 transitions. [2022-11-20 20:48:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:06,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2022-11-20 20:48:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:06,385 INFO L225 Difference]: With dead ends: 2440 [2022-11-20 20:48:06,386 INFO L226 Difference]: Without dead ends: 2438 [2022-11-20 20:48:06,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:06,388 INFO L413 NwaCegarLoop]: 3350 mSDtfsCounter, 3289 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3291 SdHoareTripleChecker+Valid, 6698 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:06,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3291 Valid, 6698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2022-11-20 20:48:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 2438. [2022-11-20 20:48:06,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 1651 states have (on average 1.2677165354330708) internal successors, (2093), 1728 states have internal predecessors, (2093), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3374 transitions. [2022-11-20 20:48:06,618 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3374 transitions. Word has length 75 [2022-11-20 20:48:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:06,619 INFO L495 AbstractCegarLoop]: Abstraction has 2438 states and 3374 transitions. [2022-11-20 20:48:06,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 20:48:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3374 transitions. [2022-11-20 20:48:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-20 20:48:06,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:06,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:06,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:06,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:06,835 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:06,836 INFO L85 PathProgramCache]: Analyzing trace with hash 221158599, now seen corresponding path program 1 times [2022-11-20 20:48:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:06,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744454485] [2022-11-20 20:48:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:06,838 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 20:48:06,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:06,839 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:06,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:08,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:08,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:09,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:09,313 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:09,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744454485] [2022-11-20 20:48:09,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744454485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:09,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:09,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:09,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924352011] [2022-11-20 20:48:09,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:09,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:09,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:09,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:09,315 INFO L87 Difference]: Start difference. First operand 2438 states and 3374 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 20:48:09,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:09,577 INFO L93 Difference]: Finished difference Result 2438 states and 3374 transitions. [2022-11-20 20:48:09,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:09,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2022-11-20 20:48:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:09,590 INFO L225 Difference]: With dead ends: 2438 [2022-11-20 20:48:09,590 INFO L226 Difference]: Without dead ends: 2436 [2022-11-20 20:48:09,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:09,593 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 3281 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:09,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 6694 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-11-20 20:48:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2022-11-20 20:48:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 1650 states have (on average 1.2672727272727273) internal successors, (2091), 1726 states have internal predecessors, (2091), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3372 transitions. [2022-11-20 20:48:09,899 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3372 transitions. Word has length 81 [2022-11-20 20:48:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:09,900 INFO L495 AbstractCegarLoop]: Abstraction has 2436 states and 3372 transitions. [2022-11-20 20:48:09,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 20:48:09,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3372 transitions. [2022-11-20 20:48:09,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 20:48:09,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:09,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:09,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:10,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:10,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:10,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:10,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1158082456, now seen corresponding path program 1 times [2022-11-20 20:48:10,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:10,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318102907] [2022-11-20 20:48:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:10,130 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 20:48:10,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:10,135 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:10,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:11,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:11,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:12,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:12,518 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:12,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318102907] [2022-11-20 20:48:12,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318102907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:12,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:12,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:12,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650135442] [2022-11-20 20:48:12,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:12,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:12,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:12,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:12,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:12,519 INFO L87 Difference]: Start difference. First operand 2436 states and 3372 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 20:48:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:12,852 INFO L93 Difference]: Finished difference Result 2436 states and 3372 transitions. [2022-11-20 20:48:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2022-11-20 20:48:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:12,865 INFO L225 Difference]: With dead ends: 2436 [2022-11-20 20:48:12,865 INFO L226 Difference]: Without dead ends: 2434 [2022-11-20 20:48:12,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:12,868 INFO L413 NwaCegarLoop]: 3346 mSDtfsCounter, 3273 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:12,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3275 Valid, 6690 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:12,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2022-11-20 20:48:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2434. [2022-11-20 20:48:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2434 states, 1649 states have (on average 1.2668283808368708) internal successors, (2089), 1724 states have internal predecessors, (2089), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 3370 transitions. [2022-11-20 20:48:13,184 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 3370 transitions. Word has length 87 [2022-11-20 20:48:13,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:13,184 INFO L495 AbstractCegarLoop]: Abstraction has 2434 states and 3370 transitions. [2022-11-20 20:48:13,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 20:48:13,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 3370 transitions. [2022-11-20 20:48:13,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 20:48:13,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:13,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:13,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:13,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:13,407 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:13,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:13,407 INFO L85 PathProgramCache]: Analyzing trace with hash -208209504, now seen corresponding path program 1 times [2022-11-20 20:48:13,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516238413] [2022-11-20 20:48:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:13,410 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 20:48:13,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:13,411 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:13,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:15,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1710 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:15,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:15,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:15,837 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:15,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516238413] [2022-11-20 20:48:15,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516238413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:15,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:15,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:15,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894574068] [2022-11-20 20:48:15,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:15,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:15,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:15,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:15,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:15,841 INFO L87 Difference]: Start difference. First operand 2434 states and 3370 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 20:48:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:16,181 INFO L93 Difference]: Finished difference Result 2434 states and 3370 transitions. [2022-11-20 20:48:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:16,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2022-11-20 20:48:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:16,195 INFO L225 Difference]: With dead ends: 2434 [2022-11-20 20:48:16,195 INFO L226 Difference]: Without dead ends: 2432 [2022-11-20 20:48:16,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:16,198 INFO L413 NwaCegarLoop]: 3344 mSDtfsCounter, 3265 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:16,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 6686 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:16,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2022-11-20 20:48:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2432. [2022-11-20 20:48:16,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1648 states have (on average 1.266383495145631) internal successors, (2087), 1722 states have internal predecessors, (2087), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3368 transitions. [2022-11-20 20:48:16,516 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3368 transitions. Word has length 93 [2022-11-20 20:48:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:16,517 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3368 transitions. [2022-11-20 20:48:16,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 20:48:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3368 transitions. [2022-11-20 20:48:16,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 20:48:16,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:16,521 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:48:16,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:16,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:16,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:16,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:16,743 INFO L85 PathProgramCache]: Analyzing trace with hash -915785871, now seen corresponding path program 1 times [2022-11-20 20:48:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:16,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817751810] [2022-11-20 20:48:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:16,745 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 20:48:16,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:16,746 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:16,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:18,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 20:48:18,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-20 20:48:19,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:48:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 20:48:20,600 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:20,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817751810] [2022-11-20 20:48:20,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817751810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:48:20,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [537918230] [2022-11-20 20:48:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:20,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:48:20,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:48:20,602 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:48:20,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-20 20:48:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:26,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 20:48:26,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 20:48:26,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:26,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [537918230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:26,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:48:26,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8] total 14 [2022-11-20 20:48:26,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219694329] [2022-11-20 20:48:26,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:26,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:48:26,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:26,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:48:26,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 20:48:26,584 INFO L87 Difference]: Start difference. First operand 2432 states and 3368 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 20:48:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:28,054 INFO L93 Difference]: Finished difference Result 5412 states and 7573 transitions. [2022-11-20 20:48:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:48:28,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 98 [2022-11-20 20:48:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:28,073 INFO L225 Difference]: With dead ends: 5412 [2022-11-20 20:48:28,073 INFO L226 Difference]: Without dead ends: 3006 [2022-11-20 20:48:28,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:48:28,084 INFO L413 NwaCegarLoop]: 4215 mSDtfsCounter, 500 mSDsluCounter, 16039 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 20254 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:28,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 20254 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 20:48:28,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-11-20 20:48:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 2432. [2022-11-20 20:48:28,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1648 states have (on average 1.2657766990291262) internal successors, (2086), 1722 states have internal predecessors, (2086), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3367 transitions. [2022-11-20 20:48:28,445 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3367 transitions. Word has length 98 [2022-11-20 20:48:28,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:28,446 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3367 transitions. [2022-11-20 20:48:28,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 20:48:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3367 transitions. [2022-11-20 20:48:28,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 20:48:28,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:28,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:28,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:28,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:28,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:28,863 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:28,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:28,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1988018041, now seen corresponding path program 1 times [2022-11-20 20:48:28,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:28,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521820098] [2022-11-20 20:48:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:28,866 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 20:48:28,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:28,868 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:28,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (15)] Waiting until timeout for monitored process [2022-11-20 20:48:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:30,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:30,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:31,508 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:31,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:31,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:31,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521820098] [2022-11-20 20:48:31,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521820098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:31,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:31,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653038734] [2022-11-20 20:48:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:31,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:31,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:31,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:31,510 INFO L87 Difference]: Start difference. First operand 2432 states and 3367 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:31,869 INFO L93 Difference]: Finished difference Result 2432 states and 3367 transitions. [2022-11-20 20:48:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:31,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2022-11-20 20:48:31,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:31,890 INFO L225 Difference]: With dead ends: 2432 [2022-11-20 20:48:31,897 INFO L226 Difference]: Without dead ends: 2430 [2022-11-20 20:48:31,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:31,900 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 3256 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3258 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:31,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3258 Valid, 6680 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-11-20 20:48:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2430. [2022-11-20 20:48:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 1647 states have (on average 1.265330904675167) internal successors, (2084), 1720 states have internal predecessors, (2084), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3365 transitions. [2022-11-20 20:48:32,304 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3365 transitions. Word has length 99 [2022-11-20 20:48:32,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:32,304 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 3365 transitions. [2022-11-20 20:48:32,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3365 transitions. [2022-11-20 20:48:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 20:48:32,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:32,307 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:48:32,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (15)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:32,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:32,531 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:32,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:32,531 INFO L85 PathProgramCache]: Analyzing trace with hash -749516658, now seen corresponding path program 1 times [2022-11-20 20:48:32,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:32,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318476504] [2022-11-20 20:48:32,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:32,534 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 20:48:32,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:32,535 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:32,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (16)] Waiting until timeout for monitored process [2022-11-20 20:48:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:34,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:34,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 20:48:34,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:34,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:34,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318476504] [2022-11-20 20:48:34,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318476504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:34,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:34,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:48:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132168996] [2022-11-20 20:48:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:34,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:34,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:34,733 INFO L87 Difference]: Start difference. First operand 2430 states and 3365 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:35,177 INFO L93 Difference]: Finished difference Result 2444 states and 3383 transitions. [2022-11-20 20:48:35,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:35,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2022-11-20 20:48:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:35,187 INFO L225 Difference]: With dead ends: 2444 [2022-11-20 20:48:35,187 INFO L226 Difference]: Without dead ends: 2442 [2022-11-20 20:48:35,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:35,190 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 23 mSDsluCounter, 6679 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 10020 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:35,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 10020 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:35,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-11-20 20:48:35,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2432. [2022-11-20 20:48:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1649 states have (on average 1.265009096422074) internal successors, (2086), 1722 states have internal predecessors, (2086), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:35,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3367 transitions. [2022-11-20 20:48:35,493 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3367 transitions. Word has length 102 [2022-11-20 20:48:35,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:35,494 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3367 transitions. [2022-11-20 20:48:35,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:35,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3367 transitions. [2022-11-20 20:48:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 20:48:35,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:35,497 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:48:35,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (16)] Ended with exit code 0 [2022-11-20 20:48:35,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:35,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:35,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash -749576240, now seen corresponding path program 1 times [2022-11-20 20:48:35,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:35,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710956919] [2022-11-20 20:48:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:35,722 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 20:48:35,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:35,725 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:35,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (17)] Waiting until timeout for monitored process [2022-11-20 20:48:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:37,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 20:48:37,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 20:48:38,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:38,644 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710956919] [2022-11-20 20:48:38,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710956919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:38,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:38,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:48:38,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504456711] [2022-11-20 20:48:38,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:38,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:48:38,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:38,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:48:38,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:48:38,646 INFO L87 Difference]: Start difference. First operand 2432 states and 3367 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:47,385 INFO L93 Difference]: Finished difference Result 4834 states and 6784 transitions. [2022-11-20 20:48:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:48:47,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2022-11-20 20:48:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:47,392 INFO L225 Difference]: With dead ends: 4834 [2022-11-20 20:48:47,392 INFO L226 Difference]: Without dead ends: 2428 [2022-11-20 20:48:47,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:48:47,405 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 3274 mSDsluCounter, 8730 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 12067 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:47,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 12067 Invalid, 1276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-20 20:48:47,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-11-20 20:48:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2428. [2022-11-20 20:48:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1646 states have (on average 1.2642770352369381) internal successors, (2081), 1718 states have internal predecessors, (2081), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3362 transitions. [2022-11-20 20:48:47,866 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3362 transitions. Word has length 102 [2022-11-20 20:48:47,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:47,867 INFO L495 AbstractCegarLoop]: Abstraction has 2428 states and 3362 transitions. [2022-11-20 20:48:47,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3362 transitions. [2022-11-20 20:48:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 20:48:47,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:47,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:47,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (17)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:48,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:48,091 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1837916158, now seen corresponding path program 1 times [2022-11-20 20:48:48,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:48,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850266540] [2022-11-20 20:48:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:48,094 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 20:48:48,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:48,095 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:48,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (18)] Waiting until timeout for monitored process [2022-11-20 20:48:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:49,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:49,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:50,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:50,608 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:50,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850266540] [2022-11-20 20:48:50,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850266540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:50,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:50,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:50,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973753938] [2022-11-20 20:48:50,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:50,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:50,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:50,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:50,611 INFO L87 Difference]: Start difference. First operand 2428 states and 3362 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:48:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:50,980 INFO L93 Difference]: Finished difference Result 2428 states and 3362 transitions. [2022-11-20 20:48:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:50,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2022-11-20 20:48:50,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:50,987 INFO L225 Difference]: With dead ends: 2428 [2022-11-20 20:48:50,987 INFO L226 Difference]: Without dead ends: 2426 [2022-11-20 20:48:50,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:50,989 INFO L413 NwaCegarLoop]: 3336 mSDtfsCounter, 3249 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 6666 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:50,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3251 Valid, 6666 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:50,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2022-11-20 20:48:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2022-11-20 20:48:51,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1645 states have (on average 1.2638297872340425) internal successors, (2079), 1716 states have internal predecessors, (2079), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3360 transitions. [2022-11-20 20:48:51,292 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3360 transitions. Word has length 105 [2022-11-20 20:48:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:51,292 INFO L495 AbstractCegarLoop]: Abstraction has 2426 states and 3360 transitions. [2022-11-20 20:48:51,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:48:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3360 transitions. [2022-11-20 20:48:51,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 20:48:51,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:51,294 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:48:51,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (18)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:51,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:51,511 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash -117100332, now seen corresponding path program 1 times [2022-11-20 20:48:51,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:51,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640595291] [2022-11-20 20:48:51,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:51,513 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 20:48:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:51,514 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:51,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (19)] Waiting until timeout for monitored process [2022-11-20 20:48:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:53,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:48:53,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 20:48:54,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:54,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:54,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640595291] [2022-11-20 20:48:54,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640595291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:54,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:54,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:48:54,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067263412] [2022-11-20 20:48:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:54,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:48:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:48:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:48:54,230 INFO L87 Difference]: Start difference. First operand 2426 states and 3360 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:54,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:54,554 INFO L93 Difference]: Finished difference Result 4822 states and 6770 transitions. [2022-11-20 20:48:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:48:54,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2022-11-20 20:48:54,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:54,566 INFO L225 Difference]: With dead ends: 4822 [2022-11-20 20:48:54,566 INFO L226 Difference]: Without dead ends: 2422 [2022-11-20 20:48:54,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 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 20:48:54,580 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 3251 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:54,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3251 Valid, 3331 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2022-11-20 20:48:54,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2422. [2022-11-20 20:48:54,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 1642 states have (on average 1.2630937880633375) internal successors, (2074), 1712 states have internal predecessors, (2074), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3355 transitions. [2022-11-20 20:48:54,950 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3355 transitions. Word has length 106 [2022-11-20 20:48:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:54,950 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3355 transitions. [2022-11-20 20:48:54,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:48:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3355 transitions. [2022-11-20 20:48:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-20 20:48:54,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:54,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:54,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (19)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:55,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:55,167 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:55,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1006023297, now seen corresponding path program 1 times [2022-11-20 20:48:55,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:55,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376975628] [2022-11-20 20:48:55,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:55,169 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 20:48:55,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:55,170 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:55,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (20)] Waiting until timeout for monitored process [2022-11-20 20:48:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:48:56,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:48:56,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:48:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:48:57,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:48:57,823 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:48:57,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376975628] [2022-11-20 20:48:57,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376975628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:48:57,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:48:57,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:48:57,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020505896] [2022-11-20 20:48:57,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:48:57,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:48:57,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:48:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:48:57,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:48:57,825 INFO L87 Difference]: Start difference. First operand 2422 states and 3355 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:48:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:48:58,205 INFO L93 Difference]: Finished difference Result 2422 states and 3355 transitions. [2022-11-20 20:48:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:48:58,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2022-11-20 20:48:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:48:58,211 INFO L225 Difference]: With dead ends: 2422 [2022-11-20 20:48:58,211 INFO L226 Difference]: Without dead ends: 2420 [2022-11-20 20:48:58,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:48:58,212 INFO L413 NwaCegarLoop]: 3329 mSDtfsCounter, 3236 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:48:58,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 6656 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:48:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2022-11-20 20:48:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2022-11-20 20:48:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1641 states have (on average 1.2626447288238878) internal successors, (2072), 1710 states have internal predecessors, (2072), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:48:58,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3353 transitions. [2022-11-20 20:48:58,555 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3353 transitions. Word has length 107 [2022-11-20 20:48:58,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:48:58,556 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3353 transitions. [2022-11-20 20:48:58,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:48:58,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3353 transitions. [2022-11-20 20:48:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 20:48:58,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:48:58,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:48:58,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (20)] Forceful destruction successful, exit code 0 [2022-11-20 20:48:58,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:58,783 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:48:58,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:48:58,784 INFO L85 PathProgramCache]: Analyzing trace with hash -173172775, now seen corresponding path program 1 times [2022-11-20 20:48:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:48:58,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239332871] [2022-11-20 20:48:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:48:58,786 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 20:48:58,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:48:58,791 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:48:58,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (21)] Waiting until timeout for monitored process [2022-11-20 20:49:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:00,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:00,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:01,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:01,397 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:01,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239332871] [2022-11-20 20:49:01,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239332871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:01,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:01,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:01,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954176923] [2022-11-20 20:49:01,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:01,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:01,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:01,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:01,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:01,400 INFO L87 Difference]: Start difference. First operand 2420 states and 3353 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 20:49:01,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:01,779 INFO L93 Difference]: Finished difference Result 2420 states and 3353 transitions. [2022-11-20 20:49:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:01,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2022-11-20 20:49:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:01,787 INFO L225 Difference]: With dead ends: 2420 [2022-11-20 20:49:01,788 INFO L226 Difference]: Without dead ends: 2418 [2022-11-20 20:49:01,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:01,789 INFO L413 NwaCegarLoop]: 3327 mSDtfsCounter, 3228 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:01,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 6652 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:01,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-11-20 20:49:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2022-11-20 20:49:02,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1640 states have (on average 1.2621951219512195) internal successors, (2070), 1708 states have internal predecessors, (2070), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:49:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3351 transitions. [2022-11-20 20:49:02,345 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3351 transitions. Word has length 113 [2022-11-20 20:49:02,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:02,346 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3351 transitions. [2022-11-20 20:49:02,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 20:49:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3351 transitions. [2022-11-20 20:49:02,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 20:49:02,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:02,349 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:02,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (21)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:02,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:02,572 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash 103293580, now seen corresponding path program 1 times [2022-11-20 20:49:02,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:02,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496480413] [2022-11-20 20:49:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:02,574 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 20:49:02,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:02,575 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:02,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (22)] Waiting until timeout for monitored process [2022-11-20 20:49:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:04,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:04,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:05,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:05,236 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:05,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496480413] [2022-11-20 20:49:05,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496480413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:05,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:05,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998972937] [2022-11-20 20:49:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:05,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:05,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:05,239 INFO L87 Difference]: Start difference. First operand 2418 states and 3351 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 20:49:05,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:05,608 INFO L93 Difference]: Finished difference Result 2418 states and 3351 transitions. [2022-11-20 20:49:05,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:05,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2022-11-20 20:49:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:05,618 INFO L225 Difference]: With dead ends: 2418 [2022-11-20 20:49:05,618 INFO L226 Difference]: Without dead ends: 2416 [2022-11-20 20:49:05,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:05,620 INFO L413 NwaCegarLoop]: 3324 mSDtfsCounter, 3220 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 6646 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:05,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 6646 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:05,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-11-20 20:49:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2416. [2022-11-20 20:49:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 1639 states have (on average 1.261744966442953) internal successors, (2068), 1706 states have internal predecessors, (2068), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:49:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3349 transitions. [2022-11-20 20:49:06,180 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3349 transitions. Word has length 119 [2022-11-20 20:49:06,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:06,181 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3349 transitions. [2022-11-20 20:49:06,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 20:49:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3349 transitions. [2022-11-20 20:49:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-20 20:49:06,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:06,185 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:06,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (22)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:06,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:06,399 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash 47625122, now seen corresponding path program 1 times [2022-11-20 20:49:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752024615] [2022-11-20 20:49:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:06,401 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 20:49:06,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:06,402 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:06,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (23)] Waiting until timeout for monitored process [2022-11-20 20:49:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:08,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:08,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:09,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:09,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:09,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752024615] [2022-11-20 20:49:09,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752024615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:09,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:09,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070039036] [2022-11-20 20:49:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:09,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:09,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:09,155 INFO L87 Difference]: Start difference. First operand 2416 states and 3349 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:49:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:09,529 INFO L93 Difference]: Finished difference Result 2416 states and 3349 transitions. [2022-11-20 20:49:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:09,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2022-11-20 20:49:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:09,537 INFO L225 Difference]: With dead ends: 2416 [2022-11-20 20:49:09,537 INFO L226 Difference]: Without dead ends: 2414 [2022-11-20 20:49:09,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:09,539 INFO L413 NwaCegarLoop]: 3322 mSDtfsCounter, 3212 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3214 SdHoareTripleChecker+Valid, 6642 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:09,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3214 Valid, 6642 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-11-20 20:49:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2022-11-20 20:49:10,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 1638 states have (on average 1.2612942612942613) internal successors, (2066), 1704 states have internal predecessors, (2066), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:49:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3347 transitions. [2022-11-20 20:49:10,059 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3347 transitions. Word has length 125 [2022-11-20 20:49:10,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:10,059 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 3347 transitions. [2022-11-20 20:49:10,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:49:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3347 transitions. [2022-11-20 20:49:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-20 20:49:10,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:10,062 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:10,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (23)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:10,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:10,293 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:10,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:10,293 INFO L85 PathProgramCache]: Analyzing trace with hash -639636178, now seen corresponding path program 1 times [2022-11-20 20:49:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:10,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637258517] [2022-11-20 20:49:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:10,295 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 20:49:10,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:10,295 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:10,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (24)] Waiting until timeout for monitored process [2022-11-20 20:49:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:12,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:12,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:13,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:13,115 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:13,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637258517] [2022-11-20 20:49:13,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637258517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:13,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:13,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:13,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214761683] [2022-11-20 20:49:13,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:13,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:13,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:13,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:13,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:13,118 INFO L87 Difference]: Start difference. First operand 2414 states and 3347 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 20:49:13,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:13,573 INFO L93 Difference]: Finished difference Result 2414 states and 3347 transitions. [2022-11-20 20:49:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:13,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2022-11-20 20:49:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:13,582 INFO L225 Difference]: With dead ends: 2414 [2022-11-20 20:49:13,582 INFO L226 Difference]: Without dead ends: 2412 [2022-11-20 20:49:13,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:13,585 INFO L413 NwaCegarLoop]: 3320 mSDtfsCounter, 3204 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3206 SdHoareTripleChecker+Valid, 6638 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:13,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3206 Valid, 6638 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:13,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-11-20 20:49:14,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2022-11-20 20:49:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1637 states have (on average 1.2608430054978619) internal successors, (2064), 1702 states have internal predecessors, (2064), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:49:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3345 transitions. [2022-11-20 20:49:14,141 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3345 transitions. Word has length 131 [2022-11-20 20:49:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:14,141 INFO L495 AbstractCegarLoop]: Abstraction has 2412 states and 3345 transitions. [2022-11-20 20:49:14,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 20:49:14,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3345 transitions. [2022-11-20 20:49:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-20 20:49:14,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:14,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:14,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (24)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:14,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:14,377 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:14,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:14,377 INFO L85 PathProgramCache]: Analyzing trace with hash 24009217, now seen corresponding path program 1 times [2022-11-20 20:49:14,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:14,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391797939] [2022-11-20 20:49:14,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:14,379 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 20:49:14,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:14,379 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:14,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (25)] Waiting until timeout for monitored process [2022-11-20 20:49:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:16,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:16,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:17,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:17,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:17,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391797939] [2022-11-20 20:49:17,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391797939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:17,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:17,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780633185] [2022-11-20 20:49:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:17,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:17,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:17,180 INFO L87 Difference]: Start difference. First operand 2412 states and 3345 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 20:49:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:17,556 INFO L93 Difference]: Finished difference Result 2412 states and 3345 transitions. [2022-11-20 20:49:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:17,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 137 [2022-11-20 20:49:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:17,564 INFO L225 Difference]: With dead ends: 2412 [2022-11-20 20:49:17,564 INFO L226 Difference]: Without dead ends: 2410 [2022-11-20 20:49:17,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:17,566 INFO L413 NwaCegarLoop]: 3318 mSDtfsCounter, 3196 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 6634 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:17,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3198 Valid, 6634 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2022-11-20 20:49:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2410. [2022-11-20 20:49:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 1636 states have (on average 1.2603911980440097) internal successors, (2062), 1700 states have internal predecessors, (2062), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 20:49:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 3343 transitions. [2022-11-20 20:49:17,886 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 3343 transitions. Word has length 137 [2022-11-20 20:49:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:17,886 INFO L495 AbstractCegarLoop]: Abstraction has 2410 states and 3343 transitions. [2022-11-20 20:49:17,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 20:49:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 3343 transitions. [2022-11-20 20:49:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 20:49:17,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:17,890 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:17,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (25)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:18,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:18,103 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:18,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:18,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1268996812, now seen corresponding path program 1 times [2022-11-20 20:49:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:18,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282048974] [2022-11-20 20:49:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:18,105 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 20:49:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:18,106 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:18,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (26)] Waiting until timeout for monitored process [2022-11-20 20:49:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:20,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-20 20:49:20,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-20 20:49:21,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:21,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:21,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282048974] [2022-11-20 20:49:21,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282048974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:21,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:21,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 20:49:21,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423309622] [2022-11-20 20:49:21,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:21,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 20:49:21,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:21,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 20:49:21,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2022-11-20 20:49:21,829 INFO L87 Difference]: Start difference. First operand 2410 states and 3343 transitions. Second operand has 19 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 20:49:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:27,095 INFO L93 Difference]: Finished difference Result 4647 states and 6442 transitions. [2022-11-20 20:49:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 20:49:27,096 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 175 [2022-11-20 20:49:27,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:27,108 INFO L225 Difference]: With dead ends: 4647 [2022-11-20 20:49:27,108 INFO L226 Difference]: Without dead ends: 2446 [2022-11-20 20:49:27,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2022-11-20 20:49:27,119 INFO L413 NwaCegarLoop]: 3312 mSDtfsCounter, 91 mSDsluCounter, 55991 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 59303 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:27,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 59303 Invalid, 925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [231 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 20:49:27,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2022-11-20 20:49:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2422. [2022-11-20 20:49:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 1644 states have (on average 1.2591240875912408) internal successors, (2070), 1708 states have internal predecessors, (2070), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:49:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3359 transitions. [2022-11-20 20:49:27,622 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3359 transitions. Word has length 175 [2022-11-20 20:49:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:27,623 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3359 transitions. [2022-11-20 20:49:27,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 20:49:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3359 transitions. [2022-11-20 20:49:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 20:49:27,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:27,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:27,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (26)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:27,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:27,843 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:27,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:27,843 INFO L85 PathProgramCache]: Analyzing trace with hash 961830331, now seen corresponding path program 1 times [2022-11-20 20:49:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:27,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260094924] [2022-11-20 20:49:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:27,845 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 20:49:27,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:27,846 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:27,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (27)] Waiting until timeout for monitored process [2022-11-20 20:49:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:29,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:29,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:30,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:30,824 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:30,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260094924] [2022-11-20 20:49:30,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260094924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:30,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:30,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:30,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697133759] [2022-11-20 20:49:30,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:30,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:30,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:30,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:30,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:30,828 INFO L87 Difference]: Start difference. First operand 2422 states and 3359 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 20:49:31,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:31,328 INFO L93 Difference]: Finished difference Result 2422 states and 3359 transitions. [2022-11-20 20:49:31,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:31,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2022-11-20 20:49:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:31,335 INFO L225 Difference]: With dead ends: 2422 [2022-11-20 20:49:31,335 INFO L226 Difference]: Without dead ends: 2420 [2022-11-20 20:49:31,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:31,338 INFO L413 NwaCegarLoop]: 3317 mSDtfsCounter, 3188 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 6632 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:31,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 6632 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2022-11-20 20:49:31,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2022-11-20 20:49:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1643 states have (on average 1.2586731588557516) internal successors, (2068), 1706 states have internal predecessors, (2068), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:49:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3357 transitions. [2022-11-20 20:49:31,742 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3357 transitions. Word has length 143 [2022-11-20 20:49:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:31,742 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3357 transitions. [2022-11-20 20:49:31,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 20:49:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3357 transitions. [2022-11-20 20:49:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 20:49:31,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:31,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:31,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (27)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:31,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:31,967 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash 422767675, now seen corresponding path program 1 times [2022-11-20 20:49:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:31,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964098510] [2022-11-20 20:49:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:31,969 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 20:49:31,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:31,971 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:31,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (28)] Waiting until timeout for monitored process [2022-11-20 20:49:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:33,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:49:33,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:49:34,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:34,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:34,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964098510] [2022-11-20 20:49:34,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964098510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:34,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:49:34,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:49:34,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531689140] [2022-11-20 20:49:34,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:34,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:49:34,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:34,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:49:34,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:49:34,859 INFO L87 Difference]: Start difference. First operand 2420 states and 3357 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 20:49:35,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:35,306 INFO L93 Difference]: Finished difference Result 2420 states and 3357 transitions. [2022-11-20 20:49:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:49:35,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 149 [2022-11-20 20:49:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:35,312 INFO L225 Difference]: With dead ends: 2420 [2022-11-20 20:49:35,312 INFO L226 Difference]: Without dead ends: 2418 [2022-11-20 20:49:35,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:49:35,315 INFO L413 NwaCegarLoop]: 3315 mSDtfsCounter, 3180 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3182 SdHoareTripleChecker+Valid, 6628 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:35,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3182 Valid, 6628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:49:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-11-20 20:49:35,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2022-11-20 20:49:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1642 states have (on average 1.2582216808769793) internal successors, (2066), 1704 states have internal predecessors, (2066), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:49:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3355 transitions. [2022-11-20 20:49:35,782 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3355 transitions. Word has length 149 [2022-11-20 20:49:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:35,782 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3355 transitions. [2022-11-20 20:49:35,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 20:49:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3355 transitions. [2022-11-20 20:49:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 20:49:35,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:35,786 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:35,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (28)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:36,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:36,007 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:36,007 INFO L85 PathProgramCache]: Analyzing trace with hash -198032652, now seen corresponding path program 1 times [2022-11-20 20:49:36,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:36,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352008047] [2022-11-20 20:49:36,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:36,010 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 20:49:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:36,012 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:36,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (29)] Waiting until timeout for monitored process [2022-11-20 20:49:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:38,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 20:49:38,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-20 20:49:38,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:49:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-20 20:49:39,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:39,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352008047] [2022-11-20 20:49:39,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352008047] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:49:39,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [768615292] [2022-11-20 20:49:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:39,538 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:49:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:49:39,539 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:49:39,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-20 20:49:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:45,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:49:46,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-20 20:49:46,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:49:46,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [768615292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:49:46,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:49:46,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10] total 15 [2022-11-20 20:49:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204310048] [2022-11-20 20:49:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:49:46,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:49:46,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:49:46,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:49:46,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:49:46,490 INFO L87 Difference]: Start difference. First operand 2418 states and 3355 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 20:49:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:49:48,048 INFO L93 Difference]: Finished difference Result 4603 states and 6372 transitions. [2022-11-20 20:49:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:49:48,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 191 [2022-11-20 20:49:48,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:49:48,058 INFO L225 Difference]: With dead ends: 4603 [2022-11-20 20:49:48,058 INFO L226 Difference]: Without dead ends: 2418 [2022-11-20 20:49:48,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-20 20:49:48,067 INFO L413 NwaCegarLoop]: 3280 mSDtfsCounter, 49 mSDsluCounter, 13016 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 16296 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:49:48,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 16296 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 20:49:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-11-20 20:49:48,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2022-11-20 20:49:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1642 states have (on average 1.2576126674786845) internal successors, (2065), 1704 states have internal predecessors, (2065), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:49:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3354 transitions. [2022-11-20 20:49:48,556 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3354 transitions. Word has length 191 [2022-11-20 20:49:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:49:48,557 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3354 transitions. [2022-11-20 20:49:48,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 20:49:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3354 transitions. [2022-11-20 20:49:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 20:49:48,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:49:48,561 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:49:48,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:48,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (29)] Forceful destruction successful, exit code 0 [2022-11-20 20:49:48,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:48,966 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:49:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:49:48,966 INFO L85 PathProgramCache]: Analyzing trace with hash -784838666, now seen corresponding path program 1 times [2022-11-20 20:49:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:49:48,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17175636] [2022-11-20 20:49:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:48,968 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 20:49:48,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:49:48,969 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:49:48,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (31)] Waiting until timeout for monitored process [2022-11-20 20:49:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:49:51,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 20:49:51,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:49:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-20 20:49:51,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:49:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-20 20:49:52,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:49:52,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17175636] [2022-11-20 20:49:52,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17175636] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:49:52,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [448531011] [2022-11-20 20:49:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:49:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:49:52,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:49:52,497 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:49:52,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-11-20 20:50:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:00,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 20:50:00,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 20:50:02,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:02,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [448531011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:02,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:50:02,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [10, 10] total 21 [2022-11-20 20:50:02,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466497896] [2022-11-20 20:50:02,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:02,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 20:50:02,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:02,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 20:50:02,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2022-11-20 20:50:02,483 INFO L87 Difference]: Start difference. First operand 2418 states and 3354 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 20:50:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:06,024 INFO L93 Difference]: Finished difference Result 4651 states and 6448 transitions. [2022-11-20 20:50:06,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 20:50:06,025 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 191 [2022-11-20 20:50:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:06,033 INFO L225 Difference]: With dead ends: 4651 [2022-11-20 20:50:06,033 INFO L226 Difference]: Without dead ends: 2454 [2022-11-20 20:50:06,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2022-11-20 20:50:06,042 INFO L413 NwaCegarLoop]: 3311 mSDtfsCounter, 56 mSDsluCounter, 39491 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 42802 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:06,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 42802 Invalid, 606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 20:50:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2022-11-20 20:50:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 2418. [2022-11-20 20:50:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1642 states have (on average 1.2576126674786845) internal successors, (2065), 1704 states have internal predecessors, (2065), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:50:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3354 transitions. [2022-11-20 20:50:06,454 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3354 transitions. Word has length 191 [2022-11-20 20:50:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:06,454 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3354 transitions. [2022-11-20 20:50:06,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 20:50:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3354 transitions. [2022-11-20 20:50:06,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 20:50:06,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:06,457 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:06,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (31)] Ended with exit code 0 [2022-11-20 20:50:06,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:06,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:50:06,857 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash -739453760, now seen corresponding path program 1 times [2022-11-20 20:50:06,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:06,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109046475] [2022-11-20 20:50:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:06,860 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 20:50:06,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:06,861 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:06,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (33)] Waiting until timeout for monitored process [2022-11-20 20:50:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:08,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:50:08,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:50:09,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:09,832 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:09,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109046475] [2022-11-20 20:50:09,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109046475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:09,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:09,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:09,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101671634] [2022-11-20 20:50:09,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:09,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:50:09,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:09,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:50:09,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:50:09,834 INFO L87 Difference]: Start difference. First operand 2418 states and 3354 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 20:50:10,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:10,274 INFO L93 Difference]: Finished difference Result 2418 states and 3354 transitions. [2022-11-20 20:50:10,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:50:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2022-11-20 20:50:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:10,279 INFO L225 Difference]: With dead ends: 2418 [2022-11-20 20:50:10,279 INFO L226 Difference]: Without dead ends: 2416 [2022-11-20 20:50:10,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:10,281 INFO L413 NwaCegarLoop]: 3312 mSDtfsCounter, 3171 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 6622 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:10,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 6622 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:10,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-11-20 20:50:10,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2416. [2022-11-20 20:50:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 1641 states have (on average 1.2571602681291896) internal successors, (2063), 1702 states have internal predecessors, (2063), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:50:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3352 transitions. [2022-11-20 20:50:10,695 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3352 transitions. Word has length 155 [2022-11-20 20:50:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:10,695 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3352 transitions. [2022-11-20 20:50:10,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 20:50:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3352 transitions. [2022-11-20 20:50:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 20:50:10,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:10,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:10,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (33)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:10,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:10,903 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:10,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:10,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1328307279, now seen corresponding path program 1 times [2022-11-20 20:50:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:10,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503340438] [2022-11-20 20:50:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:10,905 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 20:50:10,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:10,906 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:10,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (34)] Waiting until timeout for monitored process [2022-11-20 20:50:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:12,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1812 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:50:12,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:50:13,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:13,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:13,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503340438] [2022-11-20 20:50:13,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503340438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:13,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:13,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:13,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345564598] [2022-11-20 20:50:13,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:13,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:50:13,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:50:13,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:50:13,988 INFO L87 Difference]: Start difference. First operand 2416 states and 3352 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 20:50:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:14,436 INFO L93 Difference]: Finished difference Result 2416 states and 3352 transitions. [2022-11-20 20:50:14,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:50:14,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2022-11-20 20:50:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:14,443 INFO L225 Difference]: With dead ends: 2416 [2022-11-20 20:50:14,443 INFO L226 Difference]: Without dead ends: 2414 [2022-11-20 20:50:14,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:14,445 INFO L413 NwaCegarLoop]: 3310 mSDtfsCounter, 3163 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 6618 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:14,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3165 Valid, 6618 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-11-20 20:50:14,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2022-11-20 20:50:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 1640 states have (on average 1.2567073170731706) internal successors, (2061), 1700 states have internal predecessors, (2061), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:50:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3350 transitions. [2022-11-20 20:50:14,889 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3350 transitions. Word has length 161 [2022-11-20 20:50:14,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:14,890 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 3350 transitions. [2022-11-20 20:50:14,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 20:50:14,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3350 transitions. [2022-11-20 20:50:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 20:50:14,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:14,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:14,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (34)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:15,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:15,092 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1217270467, now seen corresponding path program 1 times [2022-11-20 20:50:15,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:15,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508151224] [2022-11-20 20:50:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:15,094 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 20:50:15,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:15,095 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:15,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (35)] Waiting until timeout for monitored process [2022-11-20 20:50:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:16,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:50:16,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:50:18,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:18,170 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508151224] [2022-11-20 20:50:18,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508151224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:18,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:18,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681179359] [2022-11-20 20:50:18,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:18,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:50:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:18,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:50:18,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:50:18,172 INFO L87 Difference]: Start difference. First operand 2414 states and 3350 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 20:50:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:18,638 INFO L93 Difference]: Finished difference Result 2414 states and 3350 transitions. [2022-11-20 20:50:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:50:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2022-11-20 20:50:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:18,646 INFO L225 Difference]: With dead ends: 2414 [2022-11-20 20:50:18,647 INFO L226 Difference]: Without dead ends: 2412 [2022-11-20 20:50:18,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:18,649 INFO L413 NwaCegarLoop]: 3308 mSDtfsCounter, 3155 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3157 SdHoareTripleChecker+Valid, 6614 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:18,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3157 Valid, 6614 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-11-20 20:50:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2022-11-20 20:50:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1639 states have (on average 1.2562538133007932) internal successors, (2059), 1698 states have internal predecessors, (2059), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:50:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3348 transitions. [2022-11-20 20:50:19,132 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3348 transitions. Word has length 167 [2022-11-20 20:50:19,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:19,133 INFO L495 AbstractCegarLoop]: Abstraction has 2412 states and 3348 transitions. [2022-11-20 20:50:19,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 20:50:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3348 transitions. [2022-11-20 20:50:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 20:50:19,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:19,135 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:19,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (35)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:19,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:19,335 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:19,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1978570362, now seen corresponding path program 1 times [2022-11-20 20:50:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:19,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717053194] [2022-11-20 20:50:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:19,338 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 20:50:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:19,338 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:19,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (36)] Waiting until timeout for monitored process [2022-11-20 20:50:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:21,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:50:21,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-20 20:50:21,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:21,764 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:21,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717053194] [2022-11-20 20:50:21,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717053194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:21,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:21,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:50:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123600263] [2022-11-20 20:50:21,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:21,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:50:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:21,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:50:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:50:21,766 INFO L87 Difference]: Start difference. First operand 2412 states and 3348 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 20:50:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:25,023 INFO L93 Difference]: Finished difference Result 5786 states and 8179 transitions. [2022-11-20 20:50:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:50:25,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 207 [2022-11-20 20:50:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:25,033 INFO L225 Difference]: With dead ends: 5786 [2022-11-20 20:50:25,033 INFO L226 Difference]: Without dead ends: 3555 [2022-11-20 20:50:25,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 20:50:25,039 INFO L413 NwaCegarLoop]: 3728 mSDtfsCounter, 2256 mSDsluCounter, 22580 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 26308 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:25,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 26308 Invalid, 1075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [834 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 20:50:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2022-11-20 20:50:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 2415. [2022-11-20 20:50:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 1642 states have (on average 1.2557856272838002) internal successors, (2062), 1701 states have internal predecessors, (2062), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:50:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3351 transitions. [2022-11-20 20:50:25,554 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3351 transitions. Word has length 207 [2022-11-20 20:50:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 2415 states and 3351 transitions. [2022-11-20 20:50:25,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 20:50:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3351 transitions. [2022-11-20 20:50:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 20:50:25,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:25,556 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:25,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (36)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:25,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:25,757 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:25,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash 587963548, now seen corresponding path program 1 times [2022-11-20 20:50:25,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:25,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107054714] [2022-11-20 20:50:25,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:25,759 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 20:50:25,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:25,760 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:25,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (37)] Waiting until timeout for monitored process [2022-11-20 20:50:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:27,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:50:27,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:50:28,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:28,925 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:28,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107054714] [2022-11-20 20:50:28,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107054714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:28,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:28,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:28,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952997058] [2022-11-20 20:50:28,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:28,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:50:28,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:50:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:50:28,927 INFO L87 Difference]: Start difference. First operand 2415 states and 3351 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 20:50:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:29,553 INFO L93 Difference]: Finished difference Result 2415 states and 3351 transitions. [2022-11-20 20:50:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:50:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2022-11-20 20:50:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:29,561 INFO L225 Difference]: With dead ends: 2415 [2022-11-20 20:50:29,561 INFO L226 Difference]: Without dead ends: 2413 [2022-11-20 20:50:29,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:29,563 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 3147 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3149 SdHoareTripleChecker+Valid, 6610 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:29,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3149 Valid, 6610 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-11-20 20:50:30,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2413. [2022-11-20 20:50:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 1641 states have (on average 1.2553321145642902) internal successors, (2060), 1699 states have internal predecessors, (2060), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 20:50:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3349 transitions. [2022-11-20 20:50:30,091 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3349 transitions. Word has length 173 [2022-11-20 20:50:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:30,091 INFO L495 AbstractCegarLoop]: Abstraction has 2413 states and 3349 transitions. [2022-11-20 20:50:30,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 20:50:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3349 transitions. [2022-11-20 20:50:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-20 20:50:30,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:30,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:30,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (37)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:30,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:30,294 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:30,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:30,294 INFO L85 PathProgramCache]: Analyzing trace with hash -902834346, now seen corresponding path program 1 times [2022-11-20 20:50:30,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:30,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508826284] [2022-11-20 20:50:30,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:30,297 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 20:50:30,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:30,298 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:30,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (38)] Waiting until timeout for monitored process [2022-11-20 20:50:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:32,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:50:32,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:33,468 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:50:33,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:33,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:33,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508826284] [2022-11-20 20:50:33,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508826284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:33,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:33,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:33,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112101799] [2022-11-20 20:50:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:33,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:50:33,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:50:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:50:33,472 INFO L87 Difference]: Start difference. First operand 2413 states and 3349 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 20:50:34,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:34,018 INFO L93 Difference]: Finished difference Result 2413 states and 3349 transitions. [2022-11-20 20:50:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:50:34,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 179 [2022-11-20 20:50:34,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:34,027 INFO L225 Difference]: With dead ends: 2413 [2022-11-20 20:50:34,027 INFO L226 Difference]: Without dead ends: 2238 [2022-11-20 20:50:34,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:34,030 INFO L413 NwaCegarLoop]: 3305 mSDtfsCounter, 3138 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 6610 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:34,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 6610 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-11-20 20:50:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238. [2022-11-20 20:50:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1532 states have (on average 1.2708877284595301) internal successors, (1947), 1589 states have internal predecessors, (1947), 591 states have call successors, (591), 108 states have call predecessors, (591), 109 states have return successors, (607), 574 states have call predecessors, (607), 591 states have call successors, (607) [2022-11-20 20:50:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3145 transitions. [2022-11-20 20:50:34,644 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3145 transitions. Word has length 179 [2022-11-20 20:50:34,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:34,644 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3145 transitions. [2022-11-20 20:50:34,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 20:50:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3145 transitions. [2022-11-20 20:50:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-20 20:50:34,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:34,646 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:34,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (38)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:34,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:34,847 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:34,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash -330208896, now seen corresponding path program 1 times [2022-11-20 20:50:34,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:34,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118113481] [2022-11-20 20:50:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:34,849 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 20:50:34,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:34,850 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:34,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (39)] Waiting until timeout for monitored process [2022-11-20 20:50:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:37,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2237 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 20:50:37,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:38,449 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 201 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-20 20:50:38,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:50:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-20 20:50:39,792 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118113481] [2022-11-20 20:50:39,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118113481] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:50:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1637825439] [2022-11-20 20:50:39,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:39,793 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:50:39,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:50:39,795 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:50:39,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2022-11-20 20:50:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:48,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 2237 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 20:50:48,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-20 20:50:48,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:48,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1637825439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:48,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:50:48,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 18] total 21 [2022-11-20 20:50:48,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183792444] [2022-11-20 20:50:48,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:48,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 20:50:48,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 20:50:48,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2022-11-20 20:50:48,518 INFO L87 Difference]: Start difference. First operand 2238 states and 3145 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-11-20 20:50:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:52,096 INFO L93 Difference]: Finished difference Result 4281 states and 6027 transitions. [2022-11-20 20:50:52,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 20:50:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 230 [2022-11-20 20:50:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:52,104 INFO L225 Difference]: With dead ends: 4281 [2022-11-20 20:50:52,104 INFO L226 Difference]: Without dead ends: 2225 [2022-11-20 20:50:52,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2022-11-20 20:50:52,111 INFO L413 NwaCegarLoop]: 3101 mSDtfsCounter, 49 mSDsluCounter, 40232 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 43333 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:52,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 43333 Invalid, 455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 20:50:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2022-11-20 20:50:52,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2022-11-20 20:50:52,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1523 states have (on average 1.2711753118844387) internal successors, (1936), 1580 states have internal predecessors, (1936), 588 states have call successors, (588), 107 states have call predecessors, (588), 108 states have return successors, (604), 571 states have call predecessors, (604), 588 states have call successors, (604) [2022-11-20 20:50:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3128 transitions. [2022-11-20 20:50:52,580 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3128 transitions. Word has length 230 [2022-11-20 20:50:52,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:52,580 INFO L495 AbstractCegarLoop]: Abstraction has 2225 states and 3128 transitions. [2022-11-20 20:50:52,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-11-20 20:50:52,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3128 transitions. [2022-11-20 20:50:52,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-20 20:50:52,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:52,582 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:52,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (39)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:52,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:52,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:50:52,983 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash -287252957, now seen corresponding path program 1 times [2022-11-20 20:50:52,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:52,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77455097] [2022-11-20 20:50:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:52,987 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 20:50:52,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:52,988 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:52,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (41)] Waiting until timeout for monitored process [2022-11-20 20:50:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:55,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:50:55,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-20 20:50:57,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:57,684 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:57,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77455097] [2022-11-20 20:50:57,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77455097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:57,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:57,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:50:57,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438782424] [2022-11-20 20:50:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:57,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:50:57,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:57,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:50:57,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:57,687 INFO L87 Difference]: Start difference. First operand 2225 states and 3128 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2022-11-20 20:50:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:58,271 INFO L93 Difference]: Finished difference Result 2229 states and 3131 transitions. [2022-11-20 20:50:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:50:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 248 [2022-11-20 20:50:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:58,276 INFO L225 Difference]: With dead ends: 2229 [2022-11-20 20:50:58,276 INFO L226 Difference]: Without dead ends: 2227 [2022-11-20 20:50:58,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:50:58,278 INFO L413 NwaCegarLoop]: 3106 mSDtfsCounter, 2896 mSDsluCounter, 6274 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 9380 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:58,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 9380 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:58,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-11-20 20:50:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2022-11-20 20:50:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1525 states have (on average 1.2701639344262294) internal successors, (1937), 1581 states have internal predecessors, (1937), 588 states have call successors, (588), 108 states have call predecessors, (588), 109 states have return successors, (604), 571 states have call predecessors, (604), 588 states have call successors, (604) [2022-11-20 20:50:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3129 transitions. [2022-11-20 20:50:58,734 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3129 transitions. Word has length 248 [2022-11-20 20:50:58,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:58,734 INFO L495 AbstractCegarLoop]: Abstraction has 2227 states and 3129 transitions. [2022-11-20 20:50:58,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2022-11-20 20:50:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3129 transitions. [2022-11-20 20:50:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-20 20:50:58,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:58,736 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:58,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (41)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:58,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:58,937 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:50:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:58,938 INFO L85 PathProgramCache]: Analyzing trace with hash 226681518, now seen corresponding path program 1 times [2022-11-20 20:50:58,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:58,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818877924] [2022-11-20 20:50:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:58,939 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 20:50:58,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:58,940 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:50:58,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (42)] Waiting until timeout for monitored process [2022-11-20 20:51:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:01,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:51:01,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-20 20:51:04,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:04,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:04,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818877924] [2022-11-20 20:51:04,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818877924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:04,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:04,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:51:04,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12893370] [2022-11-20 20:51:04,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:04,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:51:04,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:04,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:51:04,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:51:04,026 INFO L87 Difference]: Start difference. First operand 2227 states and 3129 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 20:51:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:04,733 INFO L93 Difference]: Finished difference Result 2294 states and 3194 transitions. [2022-11-20 20:51:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:51:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 265 [2022-11-20 20:51:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:04,741 INFO L225 Difference]: With dead ends: 2294 [2022-11-20 20:51:04,742 INFO L226 Difference]: Without dead ends: 2292 [2022-11-20 20:51:04,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:04,744 INFO L413 NwaCegarLoop]: 3142 mSDtfsCounter, 2869 mSDsluCounter, 6423 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 9565 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:04,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 9565 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:51:04,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-11-20 20:51:05,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2290. [2022-11-20 20:51:05,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 1567 states have (on average 1.2641991065730696) internal successors, (1981), 1623 states have internal predecessors, (1981), 597 states have call successors, (597), 120 states have call predecessors, (597), 121 states have return successors, (613), 580 states have call predecessors, (613), 597 states have call successors, (613) [2022-11-20 20:51:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3191 transitions. [2022-11-20 20:51:05,242 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3191 transitions. Word has length 265 [2022-11-20 20:51:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:05,242 INFO L495 AbstractCegarLoop]: Abstraction has 2290 states and 3191 transitions. [2022-11-20 20:51:05,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 20:51:05,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3191 transitions. [2022-11-20 20:51:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-20 20:51:05,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:05,245 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:05,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (42)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:05,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:05,445 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:05,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash -72631863, now seen corresponding path program 1 times [2022-11-20 20:51:05,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:05,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613652104] [2022-11-20 20:51:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:05,448 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 20:51:05,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:05,449 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:05,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (43)] Waiting until timeout for monitored process [2022-11-20 20:51:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:08,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:51:08,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-11-20 20:51:08,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:08,339 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:08,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613652104] [2022-11-20 20:51:08,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613652104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:08,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:08,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:51:08,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378526938] [2022-11-20 20:51:08,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:08,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:51:08,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:51:08,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:51:08,341 INFO L87 Difference]: Start difference. First operand 2290 states and 3191 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 20:51:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:09,332 INFO L93 Difference]: Finished difference Result 2290 states and 3191 transitions. [2022-11-20 20:51:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:51:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 272 [2022-11-20 20:51:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:09,340 INFO L225 Difference]: With dead ends: 2290 [2022-11-20 20:51:09,340 INFO L226 Difference]: Without dead ends: 2288 [2022-11-20 20:51:09,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:09,342 INFO L413 NwaCegarLoop]: 3107 mSDtfsCounter, 54 mSDsluCounter, 9255 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 12362 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:09,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 12362 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:51:09,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-11-20 20:51:09,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2288. [2022-11-20 20:51:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 1566 states have (on average 1.263729246487867) internal successors, (1979), 1621 states have internal predecessors, (1979), 597 states have call successors, (597), 120 states have call predecessors, (597), 121 states have return successors, (613), 580 states have call predecessors, (613), 597 states have call successors, (613) [2022-11-20 20:51:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 3189 transitions. [2022-11-20 20:51:09,815 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 3189 transitions. Word has length 272 [2022-11-20 20:51:09,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:09,816 INFO L495 AbstractCegarLoop]: Abstraction has 2288 states and 3189 transitions. [2022-11-20 20:51:09,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 20:51:09,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 3189 transitions. [2022-11-20 20:51:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-20 20:51:09,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:09,818 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 10, 10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:09,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (43)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:10,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:10,019 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 690504272, now seen corresponding path program 1 times [2022-11-20 20:51:10,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:10,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666693703] [2022-11-20 20:51:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:10,021 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 20:51:10,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:10,023 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:10,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (44)] Waiting until timeout for monitored process [2022-11-20 20:51:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:12,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 20:51:12,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2022-11-20 20:51:12,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:12,908 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:12,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666693703] [2022-11-20 20:51:12,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666693703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:12,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:12,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:51:12,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531003412] [2022-11-20 20:51:12,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:12,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:51:12,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:12,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:51:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:51:12,911 INFO L87 Difference]: Start difference. First operand 2288 states and 3189 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 20:51:13,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:13,982 INFO L93 Difference]: Finished difference Result 4218 states and 5881 transitions. [2022-11-20 20:51:13,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:51:13,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) Word has length 306 [2022-11-20 20:51:13,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:13,988 INFO L225 Difference]: With dead ends: 4218 [2022-11-20 20:51:13,988 INFO L226 Difference]: Without dead ends: 2301 [2022-11-20 20:51:13,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:51:13,992 INFO L413 NwaCegarLoop]: 3109 mSDtfsCounter, 6 mSDsluCounter, 18608 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21717 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:13,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 21717 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:51:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-11-20 20:51:14,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2295. [2022-11-20 20:51:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1571 states have (on average 1.2628898790579248) internal successors, (1984), 1625 states have internal predecessors, (1984), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 20:51:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3204 transitions. [2022-11-20 20:51:14,474 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3204 transitions. Word has length 306 [2022-11-20 20:51:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:14,474 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3204 transitions. [2022-11-20 20:51:14,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 20:51:14,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3204 transitions. [2022-11-20 20:51:14,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-20 20:51:14,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:14,477 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:14,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (44)] Ended with exit code 0 [2022-11-20 20:51:14,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:14,678 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:14,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:14,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2008354559, now seen corresponding path program 1 times [2022-11-20 20:51:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:14,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217408830] [2022-11-20 20:51:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:14,681 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 20:51:14,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:14,682 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:14,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (45)] Waiting until timeout for monitored process [2022-11-20 20:51:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:17,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:51:17,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-11-20 20:51:18,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:18,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:18,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217408830] [2022-11-20 20:51:18,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217408830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:18,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:18,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:51:18,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956191614] [2022-11-20 20:51:18,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:18,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:51:18,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:18,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:51:18,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:51:18,023 INFO L87 Difference]: Start difference. First operand 2295 states and 3204 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 20:51:19,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:19,733 INFO L93 Difference]: Finished difference Result 4438 states and 6213 transitions. [2022-11-20 20:51:19,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:51:19,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 285 [2022-11-20 20:51:19,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:19,744 INFO L225 Difference]: With dead ends: 4438 [2022-11-20 20:51:19,744 INFO L226 Difference]: Without dead ends: 2349 [2022-11-20 20:51:19,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:19,753 INFO L413 NwaCegarLoop]: 3152 mSDtfsCounter, 140 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 15553 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:19,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 15553 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 20:51:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-20 20:51:20,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2295. [2022-11-20 20:51:20,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1571 states have (on average 1.2622533418204964) internal successors, (1983), 1625 states have internal predecessors, (1983), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 20:51:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3203 transitions. [2022-11-20 20:51:20,246 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3203 transitions. Word has length 285 [2022-11-20 20:51:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:20,246 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3203 transitions. [2022-11-20 20:51:20,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 20:51:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3203 transitions. [2022-11-20 20:51:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-20 20:51:20,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:20,249 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:20,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (45)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:20,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:20,450 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:20,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:20,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1893585727, now seen corresponding path program 1 times [2022-11-20 20:51:20,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:20,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255472252] [2022-11-20 20:51:20,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:20,452 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 20:51:20,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:20,453 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:20,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (46)] Waiting until timeout for monitored process [2022-11-20 20:51:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:23,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:51:23,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-20 20:51:23,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:23,819 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:23,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255472252] [2022-11-20 20:51:23,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255472252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:23,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:23,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:51:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342156377] [2022-11-20 20:51:23,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:23,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:51:23,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:23,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:51:23,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:51:23,821 INFO L87 Difference]: Start difference. First operand 2295 states and 3203 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 20:51:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:24,674 INFO L93 Difference]: Finished difference Result 2297 states and 3204 transitions. [2022-11-20 20:51:24,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:51:24,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 285 [2022-11-20 20:51:24,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:24,681 INFO L225 Difference]: With dead ends: 2297 [2022-11-20 20:51:24,681 INFO L226 Difference]: Without dead ends: 2295 [2022-11-20 20:51:24,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:24,682 INFO L413 NwaCegarLoop]: 3136 mSDtfsCounter, 128 mSDsluCounter, 9293 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 12429 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:24,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 12429 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:51:24,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2022-11-20 20:51:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2295. [2022-11-20 20:51:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1571 states have (on average 1.261616804583068) internal successors, (1982), 1625 states have internal predecessors, (1982), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 20:51:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3202 transitions. [2022-11-20 20:51:25,167 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3202 transitions. Word has length 285 [2022-11-20 20:51:25,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:25,167 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3202 transitions. [2022-11-20 20:51:25,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 20:51:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3202 transitions. [2022-11-20 20:51:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-20 20:51:25,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:25,170 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:51:25,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (46)] Ended with exit code 0 [2022-11-20 20:51:25,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:25,371 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1624326000, now seen corresponding path program 1 times [2022-11-20 20:51:25,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:25,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66451868] [2022-11-20 20:51:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:25,373 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 20:51:25,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:25,374 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:25,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (47)] Waiting until timeout for monitored process [2022-11-20 20:51:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:27,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 20:51:27,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-11-20 20:51:30,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:30,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:30,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66451868] [2022-11-20 20:51:30,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66451868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:30,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:30,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:51:30,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873073618] [2022-11-20 20:51:30,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:30,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:51:30,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:30,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:51:30,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:51:30,414 INFO L87 Difference]: Start difference. First operand 2295 states and 3202 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 20:51:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:39,063 INFO L93 Difference]: Finished difference Result 4215 states and 5885 transitions. [2022-11-20 20:51:39,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:51:39,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 322 [2022-11-20 20:51:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:39,073 INFO L225 Difference]: With dead ends: 4215 [2022-11-20 20:51:39,073 INFO L226 Difference]: Without dead ends: 2291 [2022-11-20 20:51:39,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:51:39,079 INFO L413 NwaCegarLoop]: 3098 mSDtfsCounter, 2927 mSDsluCounter, 8106 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2933 SdHoareTripleChecker+Valid, 11204 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2933 Valid, 11204 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-20 20:51:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2022-11-20 20:51:39,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2022-11-20 20:51:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1568 states have (on average 1.2608418367346939) internal successors, (1977), 1621 states have internal predecessors, (1977), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 20:51:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3197 transitions. [2022-11-20 20:51:39,598 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3197 transitions. Word has length 322 [2022-11-20 20:51:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:39,598 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3197 transitions. [2022-11-20 20:51:39,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 20:51:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3197 transitions. [2022-11-20 20:51:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-20 20:51:39,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:39,601 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:51:39,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (47)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:39,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:39,802 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:39,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:39,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1185871604, now seen corresponding path program 1 times [2022-11-20 20:51:39,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:39,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166345567] [2022-11-20 20:51:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:39,804 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 20:51:39,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:39,805 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:39,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (48)] Waiting until timeout for monitored process [2022-11-20 20:51:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:42,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:51:42,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-11-20 20:51:45,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:45,027 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:45,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166345567] [2022-11-20 20:51:45,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166345567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:45,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:45,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:45,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307971179] [2022-11-20 20:51:45,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:45,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:51:45,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:45,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:51:45,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:51:45,029 INFO L87 Difference]: Start difference. First operand 2291 states and 3197 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 20:51:45,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:45,723 INFO L93 Difference]: Finished difference Result 2291 states and 3197 transitions. [2022-11-20 20:51:45,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:51:45,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 323 [2022-11-20 20:51:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:45,733 INFO L225 Difference]: With dead ends: 2291 [2022-11-20 20:51:45,733 INFO L226 Difference]: Without dead ends: 2289 [2022-11-20 20:51:45,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:51:45,747 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 2919 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:45,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2924 Valid, 6189 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:51:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-11-20 20:51:46,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2022-11-20 20:51:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1567 states have (on average 1.2603701340140396) internal successors, (1975), 1619 states have internal predecessors, (1975), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 20:51:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3195 transitions. [2022-11-20 20:51:46,401 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3195 transitions. Word has length 323 [2022-11-20 20:51:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:46,401 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3195 transitions. [2022-11-20 20:51:46,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 20:51:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3195 transitions. [2022-11-20 20:51:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-11-20 20:51:46,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:46,409 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:46,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (48)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:46,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:46,610 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash 84631568, now seen corresponding path program 1 times [2022-11-20 20:51:46,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:46,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023027353] [2022-11-20 20:51:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:46,613 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 20:51:46,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:46,614 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:46,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (49)] Waiting until timeout for monitored process [2022-11-20 20:51:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:50,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 3315 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:51:50,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-11-20 20:51:50,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:50,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:50,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023027353] [2022-11-20 20:51:50,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023027353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:50,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:50,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:51:50,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536436318] [2022-11-20 20:51:50,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:50,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:51:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:51:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:51:50,664 INFO L87 Difference]: Start difference. First operand 2289 states and 3195 transitions. Second operand has 6 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 3 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-20 20:51:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:53,138 INFO L93 Difference]: Finished difference Result 4372 states and 6174 transitions. [2022-11-20 20:51:53,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:51:53,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 3 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 364 [2022-11-20 20:51:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:53,145 INFO L225 Difference]: With dead ends: 4372 [2022-11-20 20:51:53,145 INFO L226 Difference]: Without dead ends: 2289 [2022-11-20 20:51:53,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:53,150 INFO L413 NwaCegarLoop]: 3062 mSDtfsCounter, 17 mSDsluCounter, 12187 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15249 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:53,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 15249 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 20:51:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-11-20 20:51:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2022-11-20 20:51:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1567 states have (on average 1.259731971920868) internal successors, (1974), 1619 states have internal predecessors, (1974), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 20:51:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3194 transitions. [2022-11-20 20:51:53,609 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3194 transitions. Word has length 364 [2022-11-20 20:51:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:53,609 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3194 transitions. [2022-11-20 20:51:53,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 3 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-20 20:51:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3194 transitions. [2022-11-20 20:51:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-11-20 20:51:53,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:53,615 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:53,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (49)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:53,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:53,827 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:51:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1075793322, now seen corresponding path program 1 times [2022-11-20 20:51:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:53,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487639259] [2022-11-20 20:51:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:53,830 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 20:51:53,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:53,831 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:51:53,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (50)] Waiting until timeout for monitored process [2022-11-20 20:51:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:57,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 3208 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 20:51:57,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2022-11-20 20:51:58,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:58,225 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:58,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487639259] [2022-11-20 20:51:58,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487639259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:58,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:58,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:51:58,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366328852] [2022-11-20 20:51:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:58,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:51:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:51:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:51:58,228 INFO L87 Difference]: Start difference. First operand 2289 states and 3194 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (46), 5 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 20:52:00,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:52:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:52:01,444 INFO L93 Difference]: Finished difference Result 4390 states and 6199 transitions. [2022-11-20 20:52:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:52:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (46), 5 states have call predecessors, (46), 3 states have call successors, (46) Word has length 368 [2022-11-20 20:52:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:52:01,453 INFO L225 Difference]: With dead ends: 4390 [2022-11-20 20:52:01,454 INFO L226 Difference]: Without dead ends: 2307 [2022-11-20 20:52:01,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:52:01,460 INFO L413 NwaCegarLoop]: 3095 mSDtfsCounter, 4 mSDsluCounter, 18541 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 21636 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:52:01,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 21636 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 20:52:01,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2022-11-20 20:52:01,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2298. [2022-11-20 20:52:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1573 states have (on average 1.2587412587412588) internal successors, (1980), 1625 states have internal predecessors, (1980), 599 states have call successors, (599), 120 states have call predecessors, (599), 124 states have return successors, (626), 586 states have call predecessors, (626), 599 states have call successors, (626) [2022-11-20 20:52:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3205 transitions. [2022-11-20 20:52:01,917 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3205 transitions. Word has length 368 [2022-11-20 20:52:01,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:52:01,917 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 3205 transitions. [2022-11-20 20:52:01,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (46), 5 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 20:52:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3205 transitions. [2022-11-20 20:52:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-20 20:52:01,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:52:01,923 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:01,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (50)] Forceful destruction successful, exit code 0 [2022-11-20 20:52:02,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:02,123 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:52:02,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:52:02,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1120758462, now seen corresponding path program 1 times [2022-11-20 20:52:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:52:02,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057158080] [2022-11-20 20:52:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:52:02,126 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 20:52:02,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:52:02,127 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:02,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (51)] Waiting until timeout for monitored process [2022-11-20 20:52:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:52:06,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 20:52:06,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:52:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-11-20 20:52:06,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:52:06,489 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:52:06,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057158080] [2022-11-20 20:52:06,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057158080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:52:06,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:52:06,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:52:06,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119743985] [2022-11-20 20:52:06,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:52:06,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:52:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:52:06,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:52:06,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:52:06,491 INFO L87 Difference]: Start difference. First operand 2298 states and 3205 transitions. Second operand has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 20:52:08,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:52:09,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:52:09,762 INFO L93 Difference]: Finished difference Result 4473 states and 6322 transitions. [2022-11-20 20:52:09,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:52:09,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 378 [2022-11-20 20:52:09,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:52:09,771 INFO L225 Difference]: With dead ends: 4473 [2022-11-20 20:52:09,772 INFO L226 Difference]: Without dead ends: 2381 [2022-11-20 20:52:09,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:52:09,780 INFO L413 NwaCegarLoop]: 3089 mSDtfsCounter, 92 mSDsluCounter, 12272 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 15361 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:52:09,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 15361 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 20:52:09,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-11-20 20:52:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2298. [2022-11-20 20:52:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1573 states have (on average 1.2581055308328035) internal successors, (1979), 1625 states have internal predecessors, (1979), 599 states have call successors, (599), 120 states have call predecessors, (599), 124 states have return successors, (626), 586 states have call predecessors, (626), 599 states have call successors, (626) [2022-11-20 20:52:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3204 transitions. [2022-11-20 20:52:10,268 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3204 transitions. Word has length 378 [2022-11-20 20:52:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:52:10,269 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 3204 transitions. [2022-11-20 20:52:10,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 20:52:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3204 transitions. [2022-11-20 20:52:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-20 20:52:10,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:52:10,275 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:10,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (51)] Forceful destruction successful, exit code 0 [2022-11-20 20:52:10,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:10,475 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:52:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:52:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1142474270, now seen corresponding path program 1 times [2022-11-20 20:52:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:52:10,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249901072] [2022-11-20 20:52:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:52:10,478 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 20:52:10,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:52:10,479 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:10,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (52)] Waiting until timeout for monitored process [2022-11-20 20:52:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:52:15,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:52:15,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:52:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-11-20 20:52:15,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:52:15,138 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:52:15,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249901072] [2022-11-20 20:52:15,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249901072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:52:15,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:52:15,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:52:15,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566516318] [2022-11-20 20:52:15,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:52:15,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:52:15,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:52:15,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:52:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:52:15,140 INFO L87 Difference]: Start difference. First operand 2298 states and 3204 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 20:52:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:52:15,836 INFO L93 Difference]: Finished difference Result 4391 states and 6199 transitions. [2022-11-20 20:52:15,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:52:15,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 385 [2022-11-20 20:52:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:52:15,842 INFO L225 Difference]: With dead ends: 4391 [2022-11-20 20:52:15,843 INFO L226 Difference]: Without dead ends: 2299 [2022-11-20 20:52:15,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 383 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 20:52:15,849 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 0 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6188 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:52:15,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6188 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:52:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2022-11-20 20:52:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2299. [2022-11-20 20:52:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1574 states have (on average 1.2579415501905973) internal successors, (1980), 1626 states have internal predecessors, (1980), 599 states have call successors, (599), 120 states have call predecessors, (599), 124 states have return successors, (626), 586 states have call predecessors, (626), 599 states have call successors, (626) [2022-11-20 20:52:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3205 transitions. [2022-11-20 20:52:16,329 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3205 transitions. Word has length 385 [2022-11-20 20:52:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:52:16,330 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3205 transitions. [2022-11-20 20:52:16,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 20:52:16,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3205 transitions. [2022-11-20 20:52:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-11-20 20:52:16,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:52:16,336 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:16,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (52)] Forceful destruction successful, exit code 0 [2022-11-20 20:52:16,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:16,536 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:52:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:52:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash -785777060, now seen corresponding path program 1 times [2022-11-20 20:52:16,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:52:16,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074619442] [2022-11-20 20:52:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:52:16,539 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 20:52:16,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:52:16,540 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:16,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (53)] Waiting until timeout for monitored process [2022-11-20 20:52:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:52:20,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 3258 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 20:52:20,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:52:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-11-20 20:52:24,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:52:24,132 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:52:24,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074619442] [2022-11-20 20:52:24,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074619442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:52:24,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:52:24,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:52:24,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35759189] [2022-11-20 20:52:24,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:52:24,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:52:24,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:52:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:52:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:52:24,134 INFO L87 Difference]: Start difference. First operand 2299 states and 3205 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-11-20 20:52:24,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:52:24,804 INFO L93 Difference]: Finished difference Result 2407 states and 3348 transitions. [2022-11-20 20:52:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:52:24,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 389 [2022-11-20 20:52:24,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:52:24,809 INFO L225 Difference]: With dead ends: 2407 [2022-11-20 20:52:24,810 INFO L226 Difference]: Without dead ends: 2405 [2022-11-20 20:52:24,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:52:24,811 INFO L413 NwaCegarLoop]: 3149 mSDtfsCounter, 2769 mSDsluCounter, 6493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 9642 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:52:24,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2770 Valid, 9642 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:52:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-20 20:52:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2405. [2022-11-20 20:52:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 1651 states have (on average 1.2604482132041188) internal successors, (2081), 1703 states have internal predecessors, (2081), 619 states have call successors, (619), 130 states have call predecessors, (619), 134 states have return successors, (646), 606 states have call predecessors, (646), 619 states have call successors, (646) [2022-11-20 20:52:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3346 transitions. [2022-11-20 20:52:25,350 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3346 transitions. Word has length 389 [2022-11-20 20:52:25,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:52:25,350 INFO L495 AbstractCegarLoop]: Abstraction has 2405 states and 3346 transitions. [2022-11-20 20:52:25,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-11-20 20:52:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3346 transitions. [2022-11-20 20:52:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-20 20:52:25,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:52:25,356 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:25,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (53)] Forceful destruction successful, exit code 0 [2022-11-20 20:52:25,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:25,557 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 20:52:25,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:52:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash 500294160, now seen corresponding path program 1 times [2022-11-20 20:52:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:52:25,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886867832] [2022-11-20 20:52:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:52:25,560 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 20:52:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:52:25,561 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:25,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (54)] Waiting until timeout for monitored process [2022-11-20 20:52:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:52:30,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:52:30,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:52:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-11-20 20:52:30,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:52:30,806 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:52:30,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886867832] [2022-11-20 20:52:30,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886867832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:52:30,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:52:30,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:52:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595486574] [2022-11-20 20:52:30,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:52:30,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:52:30,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:52:30,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:52:30,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:52:30,809 INFO L87 Difference]: Start difference. First operand 2405 states and 3346 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (51), 2 states have call predecessors, (51), 1 states have call successors, (51) [2022-11-20 20:52:31,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:52:31,709 INFO L93 Difference]: Finished difference Result 2405 states and 3346 transitions. [2022-11-20 20:52:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:52:31,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (51), 2 states have call predecessors, (51), 1 states have call successors, (51) Word has length 403 [2022-11-20 20:52:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:52:31,711 INFO L225 Difference]: With dead ends: 2405 [2022-11-20 20:52:31,711 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:52:31,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:52:31,716 INFO L413 NwaCegarLoop]: 3202 mSDtfsCounter, 192 mSDsluCounter, 9433 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 12635 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:52:31,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 12635 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:52:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:52:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:52:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:52:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:52:31,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 403 [2022-11-20 20:52:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:52:31,718 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:52:31,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (51), 2 states have call predecessors, (51), 1 states have call successors, (51) [2022-11-20 20:52:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:52:31,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:52:31,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 33 remaining) [2022-11-20 20:52:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 33 remaining) [2022-11-20 20:52:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 33 remaining) [2022-11-20 20:52:31,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 33 remaining) [2022-11-20 20:52:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 33 remaining) [2022-11-20 20:52:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 33 remaining) [2022-11-20 20:52:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 33 remaining) [2022-11-20 20:52:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION (25 of 33 remaining) [2022-11-20 20:52:31,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 33 remaining) [2022-11-20 20:52:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 33 remaining) [2022-11-20 20:52:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION (22 of 33 remaining) [2022-11-20 20:52:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 33 remaining) [2022-11-20 20:52:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION (20 of 33 remaining) [2022-11-20 20:52:31,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 33 remaining) [2022-11-20 20:52:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 33 remaining) [2022-11-20 20:52:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 33 remaining) [2022-11-20 20:52:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 33 remaining) [2022-11-20 20:52:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 33 remaining) [2022-11-20 20:52:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 33 remaining) [2022-11-20 20:52:31,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 33 remaining) [2022-11-20 20:52:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 33 remaining) [2022-11-20 20:52:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 33 remaining) [2022-11-20 20:52:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 33 remaining) [2022-11-20 20:52:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 33 remaining) [2022-11-20 20:52:31,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 33 remaining) [2022-11-20 20:52:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 33 remaining) [2022-11-20 20:52:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 33 remaining) [2022-11-20 20:52:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 33 remaining) [2022-11-20 20:52:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 33 remaining) [2022-11-20 20:52:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 33 remaining) [2022-11-20 20:52:31,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 33 remaining) [2022-11-20 20:52:31,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 33 remaining) [2022-11-20 20:52:31,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 33 remaining) [2022-11-20 20:52:31,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 (54)] Forceful destruction successful, exit code 0 [2022-11-20 20:52:31,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08af611b-3003-4866-abb2-4569f5799777/bin/utaipan-6cKwYrpEi9/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 20:52:31,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.