./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--ncpfs--ncpfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:10:53,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:10:53,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:10:53,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:10:53,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:10:53,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:10:53,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:10:53,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:10:53,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:10:53,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:10:53,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:10:53,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:10:53,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:10:53,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:10:53,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:10:53,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:10:53,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:10:53,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:10:53,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:10:53,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:10:53,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:10:53,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:10:53,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:10:53,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:10:53,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:10:53,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:10:53,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:10:53,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:10:53,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:10:53,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:10:53,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:10:53,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:10:53,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:10:53,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:10:53,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:10:53,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:10:53,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:10:53,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:10:53,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:10:53,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:10:53,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:10:53,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 00:10:53,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:10:53,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:10:53,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:10:53,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:10:53,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:10:53,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:10:53,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:10:53,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:10:53,646 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:10:53,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:10:53,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:10:53,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:10:53,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:10:53,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:10:53,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:10:53,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:10:53,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:10:53,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:10:53,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:10:53,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:10:53,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:10:53,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:10:53,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:10:53,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:10:53,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:10:53,650 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_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2021-12-07 00:10:53,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:10:53,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:10:53,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:10:53,862 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:10:53,863 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:10:53,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2021-12-07 00:10:53,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/data/bf5914ee6/d51f77f870e84d75b384b055565ae3fe/FLAGf0ef65710 [2021-12-07 00:10:54,643 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:10:54,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2021-12-07 00:10:54,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/data/bf5914ee6/d51f77f870e84d75b384b055565ae3fe/FLAGf0ef65710 [2021-12-07 00:10:54,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/data/bf5914ee6/d51f77f870e84d75b384b055565ae3fe [2021-12-07 00:10:54,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:10:54,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:10:54,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:10:54,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:10:54,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:10:54,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:10:54" (1/1) ... [2021-12-07 00:10:54,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559333de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:10:54, skipping insertion in model container [2021-12-07 00:10:54,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:10:54" (1/1) ... [2021-12-07 00:10:54,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:10:55,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:11:01,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2021-12-07 00:11:01,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2021-12-07 00:11:01,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2021-12-07 00:11:01,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2021-12-07 00:11:01,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2021-12-07 00:11:01,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2021-12-07 00:11:01,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2021-12-07 00:11:01,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2021-12-07 00:11:01,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2021-12-07 00:11:01,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2021-12-07 00:11:01,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2021-12-07 00:11:01,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2021-12-07 00:11:01,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2021-12-07 00:11:01,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2021-12-07 00:11:01,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2021-12-07 00:11:01,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2021-12-07 00:11:01,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2021-12-07 00:11:01,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2021-12-07 00:11:01,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2021-12-07 00:11:01,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2021-12-07 00:11:01,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2021-12-07 00:11:01,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2021-12-07 00:11:01,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2021-12-07 00:11:01,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2021-12-07 00:11:01,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2021-12-07 00:11:01,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2021-12-07 00:11:01,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2021-12-07 00:11:01,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2021-12-07 00:11:01,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2021-12-07 00:11:01,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2021-12-07 00:11:01,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2021-12-07 00:11:01,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2021-12-07 00:11:01,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2021-12-07 00:11:01,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2021-12-07 00:11:01,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2021-12-07 00:11:01,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2021-12-07 00:11:01,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2021-12-07 00:11:01,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2021-12-07 00:11:01,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2021-12-07 00:11:01,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2021-12-07 00:11:01,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2021-12-07 00:11:01,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2021-12-07 00:11:01,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2021-12-07 00:11:01,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2021-12-07 00:11:01,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2021-12-07 00:11:01,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2021-12-07 00:11:01,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2021-12-07 00:11:01,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2021-12-07 00:11:01,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2021-12-07 00:11:01,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2021-12-07 00:11:01,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2021-12-07 00:11:01,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2021-12-07 00:11:01,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2021-12-07 00:11:01,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2021-12-07 00:11:01,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2021-12-07 00:11:01,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2021-12-07 00:11:01,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2021-12-07 00:11:01,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2021-12-07 00:11:01,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2021-12-07 00:11:01,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2021-12-07 00:11:01,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2021-12-07 00:11:01,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2021-12-07 00:11:01,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2021-12-07 00:11:01,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2021-12-07 00:11:01,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2021-12-07 00:11:01,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2021-12-07 00:11:01,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2021-12-07 00:11:01,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2021-12-07 00:11:01,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2021-12-07 00:11:01,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2021-12-07 00:11:01,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2021-12-07 00:11:01,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2021-12-07 00:11:01,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2021-12-07 00:11:01,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2021-12-07 00:11:01,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2021-12-07 00:11:01,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2021-12-07 00:11:01,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2021-12-07 00:11:01,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2021-12-07 00:11:01,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2021-12-07 00:11:01,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2021-12-07 00:11:01,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2021-12-07 00:11:01,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2021-12-07 00:11:01,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2021-12-07 00:11:01,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2021-12-07 00:11:01,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2021-12-07 00:11:01,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2021-12-07 00:11:01,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2021-12-07 00:11:01,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2021-12-07 00:11:01,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:11:01,327 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:11:01,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2021-12-07 00:11:01,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2021-12-07 00:11:01,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2021-12-07 00:11:01,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2021-12-07 00:11:01,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2021-12-07 00:11:01,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2021-12-07 00:11:01,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2021-12-07 00:11:01,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2021-12-07 00:11:01,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2021-12-07 00:11:01,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2021-12-07 00:11:01,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2021-12-07 00:11:01,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2021-12-07 00:11:01,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2021-12-07 00:11:01,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2021-12-07 00:11:01,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2021-12-07 00:11:01,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2021-12-07 00:11:01,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2021-12-07 00:11:01,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2021-12-07 00:11:01,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2021-12-07 00:11:01,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2021-12-07 00:11:01,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2021-12-07 00:11:01,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2021-12-07 00:11:01,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2021-12-07 00:11:01,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2021-12-07 00:11:01,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2021-12-07 00:11:01,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2021-12-07 00:11:01,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2021-12-07 00:11:01,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2021-12-07 00:11:01,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2021-12-07 00:11:01,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2021-12-07 00:11:01,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2021-12-07 00:11:01,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2021-12-07 00:11:01,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2021-12-07 00:11:01,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2021-12-07 00:11:01,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2021-12-07 00:11:01,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2021-12-07 00:11:01,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2021-12-07 00:11:01,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2021-12-07 00:11:01,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2021-12-07 00:11:01,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2021-12-07 00:11:01,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2021-12-07 00:11:01,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2021-12-07 00:11:01,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2021-12-07 00:11:01,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2021-12-07 00:11:01,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2021-12-07 00:11:01,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2021-12-07 00:11:01,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2021-12-07 00:11:01,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2021-12-07 00:11:01,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2021-12-07 00:11:01,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2021-12-07 00:11:01,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2021-12-07 00:11:01,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2021-12-07 00:11:01,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2021-12-07 00:11:01,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2021-12-07 00:11:01,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2021-12-07 00:11:01,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2021-12-07 00:11:01,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2021-12-07 00:11:01,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2021-12-07 00:11:01,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2021-12-07 00:11:01,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2021-12-07 00:11:01,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2021-12-07 00:11:01,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2021-12-07 00:11:01,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2021-12-07 00:11:01,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2021-12-07 00:11:01,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2021-12-07 00:11:01,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2021-12-07 00:11:01,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2021-12-07 00:11:01,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2021-12-07 00:11:01,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2021-12-07 00:11:01,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2021-12-07 00:11:01,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2021-12-07 00:11:01,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2021-12-07 00:11:01,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2021-12-07 00:11:01,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2021-12-07 00:11:01,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2021-12-07 00:11:01,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2021-12-07 00:11:01,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2021-12-07 00:11:01,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2021-12-07 00:11:01,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2021-12-07 00:11:01,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2021-12-07 00:11:01,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2021-12-07 00:11:01,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2021-12-07 00:11:01,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2021-12-07 00:11:01,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2021-12-07 00:11:01,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2021-12-07 00:11:01,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2021-12-07 00:11:01,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2021-12-07 00:11:01,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2021-12-07 00:11:01,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:11:02,218 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:11:02,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02 WrapperNode [2021-12-07 00:11:02,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:11:02,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:11:02,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:11:02,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:11:02,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,566 INFO L137 Inliner]: procedures = 981, calls = 6401, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 12915 [2021-12-07 00:11:02,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:11:02,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:11:02,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:11:02,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:11:02,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:11:02,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:11:02,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:11:02,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:11:02,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (1/1) ... [2021-12-07 00:11:02,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:11:02,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:11:02,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:11:02,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ff607a-436c-477d-9a38-e804b68445b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:11:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2021-12-07 00:11:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2021-12-07 00:11:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-07 00:11:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-12-07 00:11:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-12-07 00:11:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2021-12-07 00:11:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2021-12-07 00:11:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2021-12-07 00:11:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2021-12-07 00:11:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-07 00:11:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-07 00:11:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2021-12-07 00:11:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2021-12-07 00:11:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2021-12-07 00:11:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2021-12-07 00:11:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-07 00:11:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-07 00:11:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-07 00:11:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-07 00:11:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2021-12-07 00:11:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2021-12-07 00:11:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2021-12-07 00:11:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2021-12-07 00:11:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-12-07 00:11:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-12-07 00:11:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2021-12-07 00:11:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2021-12-07 00:11:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2021-12-07 00:11:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2021-12-07 00:11:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2021-12-07 00:11:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2021-12-07 00:11:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2021-12-07 00:11:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2021-12-07 00:11:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2021-12-07 00:11:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2021-12-07 00:11:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2021-12-07 00:11:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2021-12-07 00:11:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2021-12-07 00:11:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2021-12-07 00:11:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-07 00:11:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-07 00:11:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-12-07 00:11:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-12-07 00:11:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-07 00:11:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-07 00:11:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-12-07 00:11:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-12-07 00:11:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-07 00:11:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-07 00:11:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-07 00:11:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-07 00:11:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:11:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2021-12-07 00:11:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2021-12-07 00:11:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-07 00:11:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-07 00:11:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-12-07 00:11:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-12-07 00:11:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2021-12-07 00:11:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2021-12-07 00:11:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2021-12-07 00:11:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-07 00:11:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2021-12-07 00:11:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2021-12-07 00:11:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-07 00:11:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2021-12-07 00:11:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-07 00:11:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2021-12-07 00:11:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-12-07 00:11:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2021-12-07 00:11:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2021-12-07 00:11:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-07 00:11:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:11:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2021-12-07 00:11:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2021-12-07 00:11:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-07 00:11:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2021-12-07 00:11:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-07 00:11:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2021-12-07 00:11:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2021-12-07 00:11:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-07 00:11:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-07 00:11:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-07 00:11:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2021-12-07 00:11:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:11:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-07 00:11:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2021-12-07 00:11:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2021-12-07 00:11:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-12-07 00:11:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2021-12-07 00:11:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2021-12-07 00:11:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-12-07 00:11:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2021-12-07 00:11:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2021-12-07 00:11:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-07 00:11:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2021-12-07 00:11:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2021-12-07 00:11:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-07 00:11:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2021-12-07 00:11:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-07 00:11:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2021-12-07 00:11:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 00:11:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-07 00:11:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-07 00:11:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2021-12-07 00:11:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2021-12-07 00:11:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2021-12-07 00:11:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2021-12-07 00:11:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-07 00:11:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2021-12-07 00:11:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2021-12-07 00:11:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2021-12-07 00:11:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 00:11:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2021-12-07 00:11:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2021-12-07 00:11:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2021-12-07 00:11:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 00:11:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 00:11:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2021-12-07 00:11:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2021-12-07 00:11:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-07 00:11:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-07 00:11:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 00:11:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2021-12-07 00:11:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2021-12-07 00:11:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2021-12-07 00:11:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-07 00:11:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-07 00:11:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-07 00:11:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2021-12-07 00:11:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2021-12-07 00:11:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2021-12-07 00:11:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2021-12-07 00:11:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2021-12-07 00:11:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2021-12-07 00:11:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2021-12-07 00:11:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2021-12-07 00:11:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-07 00:11:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-07 00:11:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2021-12-07 00:11:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2021-12-07 00:11:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2021-12-07 00:11:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2021-12-07 00:11:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2021-12-07 00:11:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-07 00:11:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-07 00:11:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-07 00:11:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-07 00:11:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2021-12-07 00:11:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2021-12-07 00:11:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2021-12-07 00:11:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2021-12-07 00:11:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2021-12-07 00:11:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2021-12-07 00:11:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2021-12-07 00:11:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2021-12-07 00:11:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-12-07 00:11:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-07 00:11:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2021-12-07 00:11:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2021-12-07 00:11:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2021-12-07 00:11:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-07 00:11:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2021-12-07 00:11:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-07 00:11:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2021-12-07 00:11:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2021-12-07 00:11:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2021-12-07 00:11:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2021-12-07 00:11:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-12-07 00:11:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-07 00:11:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-07 00:11:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-07 00:11:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-07 00:11:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-07 00:11:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2021-12-07 00:11:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-07 00:11:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2021-12-07 00:11:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2021-12-07 00:11:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2021-12-07 00:11:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-07 00:11:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2021-12-07 00:11:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2021-12-07 00:11:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2021-12-07 00:11:03,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2021-12-07 00:11:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-07 00:11:03,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-07 00:11:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 00:11:03,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 00:11:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2021-12-07 00:11:03,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2021-12-07 00:11:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-07 00:11:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-07 00:11:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2021-12-07 00:11:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2021-12-07 00:11:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2021-12-07 00:11:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2021-12-07 00:11:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-07 00:11:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-07 00:11:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2021-12-07 00:11:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2021-12-07 00:11:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2021-12-07 00:11:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2021-12-07 00:11:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-07 00:11:03,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2021-12-07 00:11:03,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-07 00:11:03,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2021-12-07 00:11:03,099 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2021-12-07 00:11:03,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2021-12-07 00:11:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-12-07 00:11:03,099 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-12-07 00:11:03,860 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:11:03,864 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:11:04,004 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 00:11:13,225 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:11:13,251 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:11:13,251 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-12-07 00:11:13,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:13 BoogieIcfgContainer [2021-12-07 00:11:13,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:11:13,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:11:13,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:11:13,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:11:13,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:10:54" (1/3) ... [2021-12-07 00:11:13,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce16884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:11:13, skipping insertion in model container [2021-12-07 00:11:13,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:02" (2/3) ... [2021-12-07 00:11:13,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce16884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:11:13, skipping insertion in model container [2021-12-07 00:11:13,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:13" (3/3) ... [2021-12-07 00:11:13,261 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2021-12-07 00:11:13,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:11:13,265 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-12-07 00:11:13,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:11:13,317 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:11:13,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-12-07 00:11:13,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 4349 states, 2812 states have (on average 1.2997866287339972) internal successors, (3655), 2904 states have internal predecessors, (3655), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) [2021-12-07 00:11:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-07 00:11:13,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:13,393 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-07 00:11:13,394 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:11:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 902750274, now seen corresponding path program 1 times [2021-12-07 00:11:13,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:11:13,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522535541] [2021-12-07 00:11:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:13,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:11:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:11:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:11:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:13,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:11:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:13,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:11:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:13,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:11:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 00:11:13,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:11:13,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522535541] [2021-12-07 00:11:13,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522535541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:11:13,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:11:13,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:11:13,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379144035] [2021-12-07 00:11:13,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:13,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:11:13,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:11:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:11:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:11:13,910 INFO L87 Difference]: Start difference. First operand has 4349 states, 2812 states have (on average 1.2997866287339972) internal successors, (3655), 2904 states have internal predecessors, (3655), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:25,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:11:25,577 INFO L93 Difference]: Finished difference Result 9414 states and 13965 transitions. [2021-12-07 00:11:25,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:11:25,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2021-12-07 00:11:25,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:11:25,619 INFO L225 Difference]: With dead ends: 9414 [2021-12-07 00:11:25,619 INFO L226 Difference]: Without dead ends: 5054 [2021-12-07 00:11:25,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:11:25,650 INFO L933 BasicCegarLoop]: 6289 mSDtfsCounter, 2088 mSDsluCounter, 12897 mSDsCounter, 0 mSdLazyCounter, 3766 mSolverCounterSat, 1908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 19186 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1908 IncrementalHoareTripleChecker+Valid, 3766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:11:25,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2364 Valid, 19186 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1908 Valid, 3766 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2021-12-07 00:11:25,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5054 states. [2021-12-07 00:11:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5054 to 4267. [2021-12-07 00:11:25,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 2753 states have (on average 1.2691609153650563) internal successors, (3494), 2829 states have internal predecessors, (3494), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:11:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5966 transitions. [2021-12-07 00:11:25,915 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5966 transitions. Word has length 46 [2021-12-07 00:11:25,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:11:25,916 INFO L470 AbstractCegarLoop]: Abstraction has 4267 states and 5966 transitions. [2021-12-07 00:11:25,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5966 transitions. [2021-12-07 00:11:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-07 00:11:25,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:25,919 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-07 00:11:25,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:11:25,920 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:11:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1043298884, now seen corresponding path program 1 times [2021-12-07 00:11:25,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:11:25,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343563555] [2021-12-07 00:11:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:25,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:11:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:26,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:11:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:11:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:11:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:11:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:11:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 00:11:26,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:11:26,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343563555] [2021-12-07 00:11:26,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343563555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:11:26,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:11:26,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:11:26,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135433142] [2021-12-07 00:11:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:26,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:11:26,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:11:26,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:11:26,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:11:26,205 INFO L87 Difference]: Start difference. First operand 4267 states and 5966 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:11:35,388 INFO L93 Difference]: Finished difference Result 4417 states and 6220 transitions. [2021-12-07 00:11:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:11:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2021-12-07 00:11:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:11:35,412 INFO L225 Difference]: With dead ends: 4417 [2021-12-07 00:11:35,412 INFO L226 Difference]: Without dead ends: 4415 [2021-12-07 00:11:35,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:11:35,415 INFO L933 BasicCegarLoop]: 5651 mSDtfsCounter, 5813 mSDsluCounter, 7415 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 2208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6566 SdHoareTripleChecker+Valid, 13066 SdHoareTripleChecker+Invalid, 4716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2208 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:11:35,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6566 Valid, 13066 Invalid, 4716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2208 Valid, 2508 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-12-07 00:11:35,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2021-12-07 00:11:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4265. [2021-12-07 00:11:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 2752 states have (on average 1.2688953488372092) internal successors, (3492), 2827 states have internal predecessors, (3492), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:11:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 5964 transitions. [2021-12-07 00:11:35,570 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 5964 transitions. Word has length 46 [2021-12-07 00:11:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:11:35,570 INFO L470 AbstractCegarLoop]: Abstraction has 4265 states and 5964 transitions. [2021-12-07 00:11:35,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:35,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 5964 transitions. [2021-12-07 00:11:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-07 00:11:35,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:35,572 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-12-07 00:11:35,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:11:35,573 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:11:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1756260975, now seen corresponding path program 1 times [2021-12-07 00:11:35,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:11:35,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124847419] [2021-12-07 00:11:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:35,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:11:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:11:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:11:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:35,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:11:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:11:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:11:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:35,805 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 00:11:35,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:11:35,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124847419] [2021-12-07 00:11:35,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124847419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:11:35,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:11:35,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:11:35,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448284357] [2021-12-07 00:11:35,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:35,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:11:35,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:11:35,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:11:35,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:11:35,807 INFO L87 Difference]: Start difference. First operand 4265 states and 5964 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:45,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:45,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:11:45,534 INFO L93 Difference]: Finished difference Result 4415 states and 6218 transitions. [2021-12-07 00:11:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:11:45,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2021-12-07 00:11:45,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:11:45,555 INFO L225 Difference]: With dead ends: 4415 [2021-12-07 00:11:45,556 INFO L226 Difference]: Without dead ends: 4413 [2021-12-07 00:11:45,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:11:45,558 INFO L933 BasicCegarLoop]: 5651 mSDtfsCounter, 5801 mSDsluCounter, 7419 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 2208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6552 SdHoareTripleChecker+Valid, 13070 SdHoareTripleChecker+Invalid, 4719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2208 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:11:45,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6552 Valid, 13070 Invalid, 4719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2208 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2021-12-07 00:11:45,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2021-12-07 00:11:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4263. [2021-12-07 00:11:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 2751 states have (on average 1.2686295892402764) internal successors, (3490), 2825 states have internal predecessors, (3490), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:11:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 5962 transitions. [2021-12-07 00:11:45,697 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 5962 transitions. Word has length 49 [2021-12-07 00:11:45,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:11:45,697 INFO L470 AbstractCegarLoop]: Abstraction has 4263 states and 5962 transitions. [2021-12-07 00:11:45,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 5962 transitions. [2021-12-07 00:11:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 00:11:45,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:45,699 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:11:45,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:11:45,699 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:11:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash 525912496, now seen corresponding path program 1 times [2021-12-07 00:11:45,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:11:45,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598953777] [2021-12-07 00:11:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:45,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:11:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:11:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:11:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:11:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:11:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:11:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 00:11:45,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:11:45,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598953777] [2021-12-07 00:11:45,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598953777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:11:45,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:11:45,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:11:45,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816330776] [2021-12-07 00:11:45,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:45,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:11:45,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:11:45,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:11:45,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:11:45,888 INFO L87 Difference]: Start difference. First operand 4263 states and 5962 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:54,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:11:54,978 INFO L93 Difference]: Finished difference Result 4413 states and 6216 transitions. [2021-12-07 00:11:54,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:11:54,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2021-12-07 00:11:54,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:11:55,000 INFO L225 Difference]: With dead ends: 4413 [2021-12-07 00:11:55,000 INFO L226 Difference]: Without dead ends: 4411 [2021-12-07 00:11:55,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:11:55,003 INFO L933 BasicCegarLoop]: 5648 mSDtfsCounter, 5789 mSDsluCounter, 7417 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 2208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6541 SdHoareTripleChecker+Valid, 13065 SdHoareTripleChecker+Invalid, 4722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2208 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:11:55,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6541 Valid, 13065 Invalid, 4722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2208 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-12-07 00:11:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4411 states. [2021-12-07 00:11:55,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4411 to 4261. [2021-12-07 00:11:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4261 states, 2750 states have (on average 1.2683636363636364) internal successors, (3488), 2823 states have internal predecessors, (3488), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:11:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 5960 transitions. [2021-12-07 00:11:55,162 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 5960 transitions. Word has length 52 [2021-12-07 00:11:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:11:55,162 INFO L470 AbstractCegarLoop]: Abstraction has 4261 states and 5960 transitions. [2021-12-07 00:11:55,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:11:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 5960 transitions. [2021-12-07 00:11:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-07 00:11:55,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:55,164 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:11:55,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:11:55,165 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:11:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash -576496707, now seen corresponding path program 1 times [2021-12-07 00:11:55,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:11:55,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286356395] [2021-12-07 00:11:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:55,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:11:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:11:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:11:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:55,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:11:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:55,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:11:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:11:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-07 00:11:55,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:11:55,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286356395] [2021-12-07 00:11:55,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286356395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:11:55,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:11:55,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:11:55,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576637238] [2021-12-07 00:11:55,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:55,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:11:55,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:11:55,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:11:55,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:11:55,369 INFO L87 Difference]: Start difference. First operand 4261 states and 5960 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:12:04,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:12:04,109 INFO L93 Difference]: Finished difference Result 4411 states and 6214 transitions. [2021-12-07 00:12:04,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:12:04,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2021-12-07 00:12:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:12:04,130 INFO L225 Difference]: With dead ends: 4411 [2021-12-07 00:12:04,130 INFO L226 Difference]: Without dead ends: 4409 [2021-12-07 00:12:04,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:12:04,135 INFO L933 BasicCegarLoop]: 5622 mSDtfsCounter, 5800 mSDsluCounter, 7392 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 2208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6553 SdHoareTripleChecker+Valid, 13014 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2208 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:12:04,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6553 Valid, 13014 Invalid, 4725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2208 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-12-07 00:12:04,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2021-12-07 00:12:04,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4259. [2021-12-07 00:12:04,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 2749 states have (on average 1.2680974899963624) internal successors, (3486), 2821 states have internal predecessors, (3486), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:12:04,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 5958 transitions. [2021-12-07 00:12:04,273 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 5958 transitions. Word has length 55 [2021-12-07 00:12:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:12:04,274 INFO L470 AbstractCegarLoop]: Abstraction has 4259 states and 5958 transitions. [2021-12-07 00:12:04,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:12:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 5958 transitions. [2021-12-07 00:12:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-07 00:12:04,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:12:04,275 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:12:04,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:12:04,275 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:12:04,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:12:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1168399907, now seen corresponding path program 1 times [2021-12-07 00:12:04,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:12:04,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459334180] [2021-12-07 00:12:04,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:12:04,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:12:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:12:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:12:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:12:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:12:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:12:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:12:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:12:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:12:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:12:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:04,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:12:04,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:12:04,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459334180] [2021-12-07 00:12:04,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459334180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:12:04,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:12:04,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:12:04,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041895261] [2021-12-07 00:12:04,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:12:04,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:12:04,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:12:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:12:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:12:04,517 INFO L87 Difference]: Start difference. First operand 4259 states and 5958 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 00:12:20,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:22,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:23,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:25,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:26,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:12:26,118 INFO L93 Difference]: Finished difference Result 4409 states and 6212 transitions. [2021-12-07 00:12:26,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:12:26,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-12-07 00:12:26,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:12:26,140 INFO L225 Difference]: With dead ends: 4409 [2021-12-07 00:12:26,140 INFO L226 Difference]: Without dead ends: 4407 [2021-12-07 00:12:26,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:12:26,142 INFO L933 BasicCegarLoop]: 4968 mSDtfsCounter, 10756 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 8369 mSolverCounterSat, 8338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11021 SdHoareTripleChecker+Valid, 8910 SdHoareTripleChecker+Invalid, 16707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:12:26,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11021 Valid, 8910 Invalid, 16707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8369 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2021-12-07 00:12:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2021-12-07 00:12:26,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4257. [2021-12-07 00:12:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4257 states, 2748 states have (on average 1.26783114992722) internal successors, (3484), 2819 states have internal predecessors, (3484), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:12:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4257 states to 4257 states and 5956 transitions. [2021-12-07 00:12:26,287 INFO L78 Accepts]: Start accepts. Automaton has 4257 states and 5956 transitions. Word has length 65 [2021-12-07 00:12:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:12:26,288 INFO L470 AbstractCegarLoop]: Abstraction has 4257 states and 5956 transitions. [2021-12-07 00:12:26,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 00:12:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4257 states and 5956 transitions. [2021-12-07 00:12:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:12:26,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:12:26,289 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:12:26,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:12:26,289 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:12:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:12:26,289 INFO L85 PathProgramCache]: Analyzing trace with hash 979607776, now seen corresponding path program 1 times [2021-12-07 00:12:26,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:12:26,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744743120] [2021-12-07 00:12:26,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:12:26,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:12:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:12:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:12:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:12:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:12:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:12:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:12:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:12:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:12:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:12:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:12:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:26,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:12:26,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:12:26,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744743120] [2021-12-07 00:12:26,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744743120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:12:26,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:12:26,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:12:26,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650718109] [2021-12-07 00:12:26,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:12:26,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:12:26,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:12:26,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:12:26,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:12:26,516 INFO L87 Difference]: Start difference. First operand 4257 states and 5956 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:12:42,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:47,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:49,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:12:49,801 INFO L93 Difference]: Finished difference Result 4407 states and 6210 transitions. [2021-12-07 00:12:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:12:49,802 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2021-12-07 00:12:49,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:12:49,814 INFO L225 Difference]: With dead ends: 4407 [2021-12-07 00:12:49,814 INFO L226 Difference]: Without dead ends: 4405 [2021-12-07 00:12:49,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:12:49,817 INFO L933 BasicCegarLoop]: 4967 mSDtfsCounter, 10748 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 8367 mSolverCounterSat, 8338 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11011 SdHoareTripleChecker+Valid, 8911 SdHoareTripleChecker+Invalid, 16707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8367 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:12:49,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11011 Valid, 8911 Invalid, 16707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8367 Invalid, 2 Unknown, 0 Unchecked, 22.9s Time] [2021-12-07 00:12:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4405 states. [2021-12-07 00:12:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4405 to 4255. [2021-12-07 00:12:49,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4255 states, 2747 states have (on average 1.267564615944667) internal successors, (3482), 2817 states have internal predecessors, (3482), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:12:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 5954 transitions. [2021-12-07 00:12:49,963 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 5954 transitions. Word has length 71 [2021-12-07 00:12:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:12:49,964 INFO L470 AbstractCegarLoop]: Abstraction has 4255 states and 5954 transitions. [2021-12-07 00:12:49,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:12:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 5954 transitions. [2021-12-07 00:12:49,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 00:12:49,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:12:49,965 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:12:49,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:12:49,965 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:12:49,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:12:49,966 INFO L85 PathProgramCache]: Analyzing trace with hash 391898702, now seen corresponding path program 1 times [2021-12-07 00:12:49,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:12:49,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461811939] [2021-12-07 00:12:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:12:49,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:12:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:12:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:12:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:12:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:12:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:12:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:12:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:12:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:12:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:12:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:12:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:12:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:12:50,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:12:50,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461811939] [2021-12-07 00:12:50,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461811939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:12:50,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:12:50,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:12:50,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525361030] [2021-12-07 00:12:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:12:50,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:12:50,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:12:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:12:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:12:50,221 INFO L87 Difference]: Start difference. First operand 4255 states and 5954 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 00:13:10,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:13:11,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:13:11,342 INFO L93 Difference]: Finished difference Result 4405 states and 6208 transitions. [2021-12-07 00:13:11,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:13:11,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-12-07 00:13:11,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:13:11,354 INFO L225 Difference]: With dead ends: 4405 [2021-12-07 00:13:11,354 INFO L226 Difference]: Without dead ends: 4403 [2021-12-07 00:13:11,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:13:11,356 INFO L933 BasicCegarLoop]: 4941 mSDtfsCounter, 10809 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 8347 mSolverCounterSat, 8332 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11072 SdHoareTripleChecker+Valid, 8883 SdHoareTripleChecker+Invalid, 16680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8332 IncrementalHoareTripleChecker+Valid, 8347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:13:11,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11072 Valid, 8883 Invalid, 16680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8332 Valid, 8347 Invalid, 1 Unknown, 0 Unchecked, 20.7s Time] [2021-12-07 00:13:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4403 states. [2021-12-07 00:13:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4403 to 4253. [2021-12-07 00:13:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 2746 states have (on average 1.2672978878368537) internal successors, (3480), 2815 states have internal predecessors, (3480), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2021-12-07 00:13:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 5952 transitions. [2021-12-07 00:13:11,516 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 5952 transitions. Word has length 77 [2021-12-07 00:13:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:13:11,517 INFO L470 AbstractCegarLoop]: Abstraction has 4253 states and 5952 transitions. [2021-12-07 00:13:11,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 00:13:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 5952 transitions. [2021-12-07 00:13:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-07 00:13:11,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:13:11,518 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:13:11,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:13:11,518 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:13:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:13:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -938796745, now seen corresponding path program 1 times [2021-12-07 00:13:11,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:13:11,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723015128] [2021-12-07 00:13:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:13:11,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:13:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:13:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:13:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:13:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:13:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:13:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-07 00:13:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:13:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:13:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:13:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:13:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-07 00:13:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-07 00:13:11,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:13:11,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723015128] [2021-12-07 00:13:11,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723015128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:13:11,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:13:11,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:13:11,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404527291] [2021-12-07 00:13:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:13:11,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:13:11,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:13:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:13:11,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:13:11,903 INFO L87 Difference]: Start difference. First operand 4253 states and 5952 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 00:13:30,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:13:32,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:13:33,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:13:33,761 INFO L93 Difference]: Finished difference Result 12847 states and 18089 transitions. [2021-12-07 00:13:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:13:33,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2021-12-07 00:13:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:13:33,786 INFO L225 Difference]: With dead ends: 12847 [2021-12-07 00:13:33,786 INFO L226 Difference]: Without dead ends: 8605 [2021-12-07 00:13:33,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:13:33,803 INFO L933 BasicCegarLoop]: 7028 mSDtfsCounter, 6598 mSDsluCounter, 25891 mSDsCounter, 0 mSdLazyCounter, 9391 mSolverCounterSat, 3827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7460 SdHoareTripleChecker+Valid, 32919 SdHoareTripleChecker+Invalid, 13218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3827 IncrementalHoareTripleChecker+Valid, 9391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:13:33,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7460 Valid, 32919 Invalid, 13218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3827 Valid, 9391 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2021-12-07 00:13:33,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2021-12-07 00:13:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 8117. [2021-12-07 00:13:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8117 states, 5255 states have (on average 1.2723120837297812) internal successors, (6686), 5364 states have internal predecessors, (6686), 2382 states have call successors, (2382), 453 states have call predecessors, (2382), 453 states have return successors, (2396), 2353 states have call predecessors, (2396), 2380 states have call successors, (2396) [2021-12-07 00:13:34,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8117 states to 8117 states and 11464 transitions. [2021-12-07 00:13:34,150 INFO L78 Accepts]: Start accepts. Automaton has 8117 states and 11464 transitions. Word has length 84 [2021-12-07 00:13:34,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:13:34,150 INFO L470 AbstractCegarLoop]: Abstraction has 8117 states and 11464 transitions. [2021-12-07 00:13:34,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 00:13:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 8117 states and 11464 transitions. [2021-12-07 00:13:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-07 00:13:34,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:13:34,151 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:13:34,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:13:34,152 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:13:34,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:13:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash 689748678, now seen corresponding path program 1 times [2021-12-07 00:13:34,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:13:34,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903028841] [2021-12-07 00:13:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:13:34,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:13:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:13:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:13:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:13:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:13:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:13:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:13:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:13:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:13:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:13:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:13:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:13:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:13:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:13:34,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:13:34,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903028841] [2021-12-07 00:13:34,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903028841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:13:34,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:13:34,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:13:34,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241950435] [2021-12-07 00:13:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:13:34,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:13:34,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:13:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:13:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:13:34,379 INFO L87 Difference]: Start difference. First operand 8117 states and 11464 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-07 00:13:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:13:56,290 INFO L93 Difference]: Finished difference Result 8411 states and 11946 transitions. [2021-12-07 00:13:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:13:56,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2021-12-07 00:13:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:13:56,312 INFO L225 Difference]: With dead ends: 8411 [2021-12-07 00:13:56,313 INFO L226 Difference]: Without dead ends: 8409 [2021-12-07 00:13:56,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:13:56,316 INFO L933 BasicCegarLoop]: 4942 mSDtfsCounter, 10795 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 8344 mSolverCounterSat, 8338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11056 SdHoareTripleChecker+Valid, 8886 SdHoareTripleChecker+Invalid, 16682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:13:56,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11056 Valid, 8886 Invalid, 16682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8344 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2021-12-07 00:13:56,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2021-12-07 00:13:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 8115. [2021-12-07 00:13:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8115 states, 5254 states have (on average 1.272173582032737) internal successors, (6684), 5362 states have internal predecessors, (6684), 2382 states have call successors, (2382), 453 states have call predecessors, (2382), 453 states have return successors, (2396), 2353 states have call predecessors, (2396), 2380 states have call successors, (2396) [2021-12-07 00:13:56,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8115 states to 8115 states and 11462 transitions. [2021-12-07 00:13:56,676 INFO L78 Accepts]: Start accepts. Automaton has 8115 states and 11462 transitions. Word has length 83 [2021-12-07 00:13:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:13:56,677 INFO L470 AbstractCegarLoop]: Abstraction has 8115 states and 11462 transitions. [2021-12-07 00:13:56,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-07 00:13:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 8115 states and 11462 transitions. [2021-12-07 00:13:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-07 00:13:56,678 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:13:56,678 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:13:56,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:13:56,678 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:13:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:13:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 381351053, now seen corresponding path program 1 times [2021-12-07 00:13:56,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:13:56,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45828242] [2021-12-07 00:13:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:13:56,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:13:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:13:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:13:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:13:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:13:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:13:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:13:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:13:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:13:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:13:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:13:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:13:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:13:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:13:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:13:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:13:56,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:13:56,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45828242] [2021-12-07 00:13:56,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45828242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:13:56,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:13:56,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:13:56,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432145656] [2021-12-07 00:13:56,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:13:56,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:13:56,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:13:56,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:13:56,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:13:56,905 INFO L87 Difference]: Start difference. First operand 8115 states and 11462 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:14:15,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:14:18,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:14:22,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:14:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:14:23,037 INFO L93 Difference]: Finished difference Result 8409 states and 11944 transitions. [2021-12-07 00:14:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:14:23,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2021-12-07 00:14:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:14:23,060 INFO L225 Difference]: With dead ends: 8409 [2021-12-07 00:14:23,060 INFO L226 Difference]: Without dead ends: 8407 [2021-12-07 00:14:23,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:14:23,063 INFO L933 BasicCegarLoop]: 4940 mSDtfsCounter, 10787 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 8343 mSolverCounterSat, 8335 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11047 SdHoareTripleChecker+Valid, 8884 SdHoareTripleChecker+Invalid, 16680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8335 IncrementalHoareTripleChecker+Valid, 8343 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:14:23,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11047 Valid, 8884 Invalid, 16680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8335 Valid, 8343 Invalid, 2 Unknown, 0 Unchecked, 25.5s Time] [2021-12-07 00:14:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8407 states. [2021-12-07 00:14:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8407 to 8113. [2021-12-07 00:14:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8113 states, 5253 states have (on average 1.2720350276032744) internal successors, (6682), 5360 states have internal predecessors, (6682), 2382 states have call successors, (2382), 453 states have call predecessors, (2382), 453 states have return successors, (2396), 2353 states have call predecessors, (2396), 2380 states have call successors, (2396) [2021-12-07 00:14:23,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8113 states to 8113 states and 11460 transitions. [2021-12-07 00:14:23,422 INFO L78 Accepts]: Start accepts. Automaton has 8113 states and 11460 transitions. Word has length 89 [2021-12-07 00:14:23,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:14:23,423 INFO L470 AbstractCegarLoop]: Abstraction has 8113 states and 11460 transitions. [2021-12-07 00:14:23,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:14:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 8113 states and 11460 transitions. [2021-12-07 00:14:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-07 00:14:23,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:14:23,425 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:14:23,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:14:23,425 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:14:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:14:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash 10887604, now seen corresponding path program 1 times [2021-12-07 00:14:23,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:14:23,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375890406] [2021-12-07 00:14:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:14:23,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:14:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:14:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:14:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:14:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:14:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:14:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:14:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:14:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:14:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:14:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:14:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:14:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:14:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:14:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:14:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:14:23,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:14:23,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375890406] [2021-12-07 00:14:23,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375890406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:14:23,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:14:23,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:14:23,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540599689] [2021-12-07 00:14:23,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:14:23,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:14:23,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:14:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:14:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:14:23,677 INFO L87 Difference]: Start difference. First operand 8113 states and 11460 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:14:46,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:14:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:14:46,666 INFO L93 Difference]: Finished difference Result 8407 states and 11942 transitions. [2021-12-07 00:14:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:14:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-12-07 00:14:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:14:46,690 INFO L225 Difference]: With dead ends: 8407 [2021-12-07 00:14:46,690 INFO L226 Difference]: Without dead ends: 8405 [2021-12-07 00:14:46,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:14:46,693 INFO L933 BasicCegarLoop]: 4961 mSDtfsCounter, 10710 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 8365 mSolverCounterSat, 8335 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10969 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 16701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8335 IncrementalHoareTripleChecker+Valid, 8365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:14:46,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10969 Valid, 8905 Invalid, 16701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8335 Valid, 8365 Invalid, 1 Unknown, 0 Unchecked, 22.4s Time] [2021-12-07 00:14:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8405 states. [2021-12-07 00:14:47,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8405 to 8111. [2021-12-07 00:14:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8111 states, 5252 states have (on average 1.271896420411272) internal successors, (6680), 5358 states have internal predecessors, (6680), 2382 states have call successors, (2382), 453 states have call predecessors, (2382), 453 states have return successors, (2396), 2353 states have call predecessors, (2396), 2380 states have call successors, (2396) [2021-12-07 00:14:47,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8111 states to 8111 states and 11458 transitions. [2021-12-07 00:14:47,059 INFO L78 Accepts]: Start accepts. Automaton has 8111 states and 11458 transitions. Word has length 95 [2021-12-07 00:14:47,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:14:47,059 INFO L470 AbstractCegarLoop]: Abstraction has 8111 states and 11458 transitions. [2021-12-07 00:14:47,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:14:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 8111 states and 11458 transitions. [2021-12-07 00:14:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-07 00:14:47,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:14:47,061 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:14:47,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:14:47,061 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:14:47,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:14:47,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1443120669, now seen corresponding path program 1 times [2021-12-07 00:14:47,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:14:47,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277175797] [2021-12-07 00:14:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:14:47,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:14:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:14:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:14:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:14:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:14:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:14:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:14:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:14:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:14:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:14:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:14:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:14:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:14:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:14:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 00:14:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:14:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:14:47,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:14:47,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277175797] [2021-12-07 00:14:47,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277175797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:14:47,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:14:47,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:14:47,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396244281] [2021-12-07 00:14:47,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:14:47,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:14:47,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:14:47,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:14:47,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:14:47,503 INFO L87 Difference]: Start difference. First operand 8111 states and 11458 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:15:03,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:15:04,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:15:08,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:15:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:08,619 INFO L93 Difference]: Finished difference Result 14946 states and 21679 transitions. [2021-12-07 00:15:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:15:08,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2021-12-07 00:15:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:08,674 INFO L225 Difference]: With dead ends: 14946 [2021-12-07 00:15:08,675 INFO L226 Difference]: Without dead ends: 14944 [2021-12-07 00:15:08,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:15:08,680 INFO L933 BasicCegarLoop]: 7291 mSDtfsCounter, 5754 mSDsluCounter, 21153 mSDsCounter, 0 mSdLazyCounter, 5975 mSolverCounterSat, 2519 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6541 SdHoareTripleChecker+Valid, 28444 SdHoareTripleChecker+Invalid, 8495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2519 IncrementalHoareTripleChecker+Valid, 5975 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:08,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6541 Valid, 28444 Invalid, 8495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2519 Valid, 5975 Invalid, 1 Unknown, 0 Unchecked, 20.2s Time] [2021-12-07 00:15:08,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14944 states. [2021-12-07 00:15:09,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14944 to 14564. [2021-12-07 00:15:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14564 states, 9719 states have (on average 1.2852145282436465) internal successors, (12491), 9890 states have internal predecessors, (12491), 3997 states have call successors, (3997), 781 states have call predecessors, (3997), 824 states have return successors, (4693), 3987 states have call predecessors, (4693), 3995 states have call successors, (4693) [2021-12-07 00:15:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14564 states to 14564 states and 21181 transitions. [2021-12-07 00:15:09,402 INFO L78 Accepts]: Start accepts. Automaton has 14564 states and 21181 transitions. Word has length 100 [2021-12-07 00:15:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:09,402 INFO L470 AbstractCegarLoop]: Abstraction has 14564 states and 21181 transitions. [2021-12-07 00:15:09,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:15:09,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14564 states and 21181 transitions. [2021-12-07 00:15:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-07 00:15:09,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:09,404 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:09,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:15:09,404 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:15:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:09,404 INFO L85 PathProgramCache]: Analyzing trace with hash 250616513, now seen corresponding path program 1 times [2021-12-07 00:15:09,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:09,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331297636] [2021-12-07 00:15:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:09,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:15:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:15:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:15:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:15:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:15:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:15:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:15:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:15:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:15:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:15:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:15:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:15:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:15:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:15:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:15:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:15:09,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:09,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331297636] [2021-12-07 00:15:09,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331297636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:09,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:09,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:15:09,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597515932] [2021-12-07 00:15:09,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:09,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:15:09,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:15:09,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:15:09,632 INFO L87 Difference]: Start difference. First operand 14564 states and 21181 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:15:32,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:15:34,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:15:34,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:34,809 INFO L93 Difference]: Finished difference Result 14718 states and 21441 transitions. [2021-12-07 00:15:34,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:15:34,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-12-07 00:15:34,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:34,845 INFO L225 Difference]: With dead ends: 14718 [2021-12-07 00:15:34,845 INFO L226 Difference]: Without dead ends: 14716 [2021-12-07 00:15:34,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:15:34,850 INFO L933 BasicCegarLoop]: 4960 mSDtfsCounter, 10702 mSDsluCounter, 3946 mSDsCounter, 0 mSdLazyCounter, 8361 mSolverCounterSat, 8338 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10959 SdHoareTripleChecker+Valid, 8906 SdHoareTripleChecker+Invalid, 16701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8361 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:34,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10959 Valid, 8906 Invalid, 16701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8361 Invalid, 2 Unknown, 0 Unchecked, 24.3s Time] [2021-12-07 00:15:34,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14716 states. [2021-12-07 00:15:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14716 to 14562. [2021-12-07 00:15:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14562 states, 9718 states have (on average 1.2851409755093641) internal successors, (12489), 9888 states have internal predecessors, (12489), 3997 states have call successors, (3997), 781 states have call predecessors, (3997), 824 states have return successors, (4693), 3987 states have call predecessors, (4693), 3995 states have call successors, (4693) [2021-12-07 00:15:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14562 states to 14562 states and 21179 transitions. [2021-12-07 00:15:35,537 INFO L78 Accepts]: Start accepts. Automaton has 14562 states and 21179 transitions. Word has length 101 [2021-12-07 00:15:35,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:35,538 INFO L470 AbstractCegarLoop]: Abstraction has 14562 states and 21179 transitions. [2021-12-07 00:15:35,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:15:35,538 INFO L276 IsEmpty]: Start isEmpty. Operand 14562 states and 21179 transitions. [2021-12-07 00:15:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-07 00:15:35,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:35,539 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:35,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 00:15:35,540 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:15:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:35,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1093577705, now seen corresponding path program 1 times [2021-12-07 00:15:35,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:35,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966164198] [2021-12-07 00:15:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:35,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:15:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:15:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:15:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:15:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:15:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:15:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:15:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:15:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:15:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:15:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:15:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:15:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:15:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:15:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:15:35,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:35,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966164198] [2021-12-07 00:15:35,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966164198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:35,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:35,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:15:35,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163319647] [2021-12-07 00:15:35,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:35,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:15:35,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:35,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:15:35,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:15:35,805 INFO L87 Difference]: Start difference. First operand 14562 states and 21179 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:15:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:51,067 INFO L93 Difference]: Finished difference Result 16326 states and 23422 transitions. [2021-12-07 00:15:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:15:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2021-12-07 00:15:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:51,106 INFO L225 Difference]: With dead ends: 16326 [2021-12-07 00:15:51,106 INFO L226 Difference]: Without dead ends: 16324 [2021-12-07 00:15:51,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:15:51,112 INFO L933 BasicCegarLoop]: 6104 mSDtfsCounter, 5870 mSDsluCounter, 13776 mSDsCounter, 0 mSdLazyCounter, 4545 mSolverCounterSat, 2258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6692 SdHoareTripleChecker+Valid, 19880 SdHoareTripleChecker+Invalid, 6803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2258 IncrementalHoareTripleChecker+Valid, 4545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:51,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6692 Valid, 19880 Invalid, 6803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2258 Valid, 4545 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2021-12-07 00:15:51,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16324 states. [2021-12-07 00:15:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16324 to 16108. [2021-12-07 00:15:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16108 states, 10670 states have (on average 1.2724461105904405) internal successors, (13577), 10852 states have internal predecessors, (13577), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:15:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16108 states to 16108 states and 23083 transitions. [2021-12-07 00:15:51,898 INFO L78 Accepts]: Start accepts. Automaton has 16108 states and 23083 transitions. Word has length 105 [2021-12-07 00:15:51,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:51,899 INFO L470 AbstractCegarLoop]: Abstraction has 16108 states and 23083 transitions. [2021-12-07 00:15:51,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:15:51,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16108 states and 23083 transitions. [2021-12-07 00:15:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-07 00:15:51,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:51,900 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:51,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:15:51,901 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:15:51,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:51,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1508214769, now seen corresponding path program 1 times [2021-12-07 00:15:51,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:51,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108551628] [2021-12-07 00:15:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:51,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:15:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:15:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:15:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:15:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:15:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:15:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:15:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:15:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:15:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:15:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:15:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:15:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:15:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 00:15:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:15:52,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:52,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108551628] [2021-12-07 00:15:52,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108551628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:52,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:52,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:15:52,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811204552] [2021-12-07 00:15:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:52,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:15:52,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:15:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:15:52,158 INFO L87 Difference]: Start difference. First operand 16108 states and 23083 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:16:06,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:16:09,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:16:10,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:16:10,218 INFO L93 Difference]: Finished difference Result 32358 states and 47373 transitions. [2021-12-07 00:16:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:16:10,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2021-12-07 00:16:10,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:16:10,278 INFO L225 Difference]: With dead ends: 32358 [2021-12-07 00:16:10,279 INFO L226 Difference]: Without dead ends: 16312 [2021-12-07 00:16:10,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:16:10,336 INFO L933 BasicCegarLoop]: 5609 mSDtfsCounter, 5774 mSDsluCounter, 14928 mSDsCounter, 0 mSdLazyCounter, 6898 mSolverCounterSat, 2210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6526 SdHoareTripleChecker+Valid, 20537 SdHoareTripleChecker+Invalid, 9108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2210 IncrementalHoareTripleChecker+Valid, 6898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:16:10,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6526 Valid, 20537 Invalid, 9108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2210 Valid, 6898 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2021-12-07 00:16:10,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16312 states. [2021-12-07 00:16:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16312 to 16108. [2021-12-07 00:16:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16108 states, 10670 states have (on average 1.271883786316776) internal successors, (13571), 10852 states have internal predecessors, (13571), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:16:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16108 states to 16108 states and 23077 transitions. [2021-12-07 00:16:11,270 INFO L78 Accepts]: Start accepts. Automaton has 16108 states and 23077 transitions. Word has length 102 [2021-12-07 00:16:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:16:11,270 INFO L470 AbstractCegarLoop]: Abstraction has 16108 states and 23077 transitions. [2021-12-07 00:16:11,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:16:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 16108 states and 23077 transitions. [2021-12-07 00:16:11,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-07 00:16:11,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:16:11,272 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:16:11,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:16:11,272 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:16:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1508155187, now seen corresponding path program 1 times [2021-12-07 00:16:11,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:11,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303024592] [2021-12-07 00:16:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:11,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:16:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:16:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:16:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:16:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:16:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:16:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:16:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:16:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:16:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:16:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:16:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:16:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:16:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 00:16:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:16:11,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:11,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303024592] [2021-12-07 00:16:11,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303024592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:16:11,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:16:11,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:16:11,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957156641] [2021-12-07 00:16:11,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:16:11,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:16:11,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:16:11,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:16:11,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:16:11,445 INFO L87 Difference]: Start difference. First operand 16108 states and 23077 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-07 00:16:24,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:16:24,359 INFO L93 Difference]: Finished difference Result 16312 states and 23405 transitions. [2021-12-07 00:16:24,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:16:24,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 2 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 102 [2021-12-07 00:16:24,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:16:24,403 INFO L225 Difference]: With dead ends: 16312 [2021-12-07 00:16:24,403 INFO L226 Difference]: Without dead ends: 16310 [2021-12-07 00:16:24,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:16:24,409 INFO L933 BasicCegarLoop]: 5666 mSDtfsCounter, 1041 mSDsluCounter, 12367 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 1276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 18033 SdHoareTripleChecker+Invalid, 4775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1276 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:16:24,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1317 Valid, 18033 Invalid, 4775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1276 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2021-12-07 00:16:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16310 states. [2021-12-07 00:16:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16310 to 16106. [2021-12-07 00:16:25,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16106 states, 10669 states have (on average 1.2713468928671854) internal successors, (13564), 10850 states have internal predecessors, (13564), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:16:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16106 states to 16106 states and 23070 transitions. [2021-12-07 00:16:25,222 INFO L78 Accepts]: Start accepts. Automaton has 16106 states and 23070 transitions. Word has length 102 [2021-12-07 00:16:25,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:16:25,222 INFO L470 AbstractCegarLoop]: Abstraction has 16106 states and 23070 transitions. [2021-12-07 00:16:25,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-07 00:16:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 16106 states and 23070 transitions. [2021-12-07 00:16:25,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-07 00:16:25,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:16:25,224 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:16:25,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 00:16:25,224 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:16:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:25,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2019479985, now seen corresponding path program 1 times [2021-12-07 00:16:25,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:25,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718674162] [2021-12-07 00:16:25,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:25,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:16:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:16:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:16:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:16:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:16:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:16:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:16:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:16:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:16:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:16:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:16:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:16:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:16:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:16:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:16:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:16:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:25,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:16:25,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:25,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718674162] [2021-12-07 00:16:25,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718674162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:16:25,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:16:25,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:16:25,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993454410] [2021-12-07 00:16:25,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:16:25,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:16:25,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:16:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:16:25,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:16:25,435 INFO L87 Difference]: Start difference. First operand 16106 states and 23070 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:16:48,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:16:50,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:16:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:16:51,552 INFO L93 Difference]: Finished difference Result 16310 states and 23398 transitions. [2021-12-07 00:16:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:16:51,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2021-12-07 00:16:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:16:51,599 INFO L225 Difference]: With dead ends: 16310 [2021-12-07 00:16:51,599 INFO L226 Difference]: Without dead ends: 16308 [2021-12-07 00:16:51,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:16:51,605 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 10755 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 8324 mSolverCounterSat, 8341 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11012 SdHoareTripleChecker+Valid, 8875 SdHoareTripleChecker+Invalid, 16667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8341 IncrementalHoareTripleChecker+Valid, 8324 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:16:51,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11012 Valid, 8875 Invalid, 16667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8341 Valid, 8324 Invalid, 2 Unknown, 0 Unchecked, 25.0s Time] [2021-12-07 00:16:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16308 states. [2021-12-07 00:16:52,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16308 to 16104. [2021-12-07 00:16:52,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16104 states, 10668 states have (on average 1.271278590176228) internal successors, (13562), 10848 states have internal predecessors, (13562), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:16:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16104 states to 16104 states and 23068 transitions. [2021-12-07 00:16:52,450 INFO L78 Accepts]: Start accepts. Automaton has 16104 states and 23068 transitions. Word has length 107 [2021-12-07 00:16:52,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:16:52,451 INFO L470 AbstractCegarLoop]: Abstraction has 16104 states and 23068 transitions. [2021-12-07 00:16:52,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:16:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 16104 states and 23068 transitions. [2021-12-07 00:16:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-07 00:16:52,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:16:52,453 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:16:52,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:16:52,453 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:16:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2067576109, now seen corresponding path program 1 times [2021-12-07 00:16:52,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:52,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693121574] [2021-12-07 00:16:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:52,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:16:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:16:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:16:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:16:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:16:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:16:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:16:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:16:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:16:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:16:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:16:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:16:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:16:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-07 00:16:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:16:52,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693121574] [2021-12-07 00:16:52,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693121574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:16:52,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:16:52,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:16:52,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179201930] [2021-12-07 00:16:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:16:52,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:16:52,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:16:52,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:16:52,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:16:52,641 INFO L87 Difference]: Start difference. First operand 16104 states and 23068 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:17:02,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:17:04,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:17:04,371 INFO L93 Difference]: Finished difference Result 32336 states and 47324 transitions. [2021-12-07 00:17:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:17:04,372 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), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2021-12-07 00:17:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:17:04,427 INFO L225 Difference]: With dead ends: 32336 [2021-12-07 00:17:04,427 INFO L226 Difference]: Without dead ends: 16294 [2021-12-07 00:17:04,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:17:04,479 INFO L933 BasicCegarLoop]: 5601 mSDtfsCounter, 5737 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 2207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6489 SdHoareTripleChecker+Valid, 8141 SdHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2207 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:17:04,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6489 Valid, 8141 Invalid, 3595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2207 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2021-12-07 00:17:04,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16294 states. [2021-12-07 00:17:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16294 to 16090. [2021-12-07 00:17:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16090 states, 10655 states have (on average 1.2704833411543877) internal successors, (13537), 10834 states have internal predecessors, (13537), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:17:05,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16090 states to 16090 states and 23043 transitions. [2021-12-07 00:17:05,373 INFO L78 Accepts]: Start accepts. Automaton has 16090 states and 23043 transitions. Word has length 106 [2021-12-07 00:17:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:17:05,374 INFO L470 AbstractCegarLoop]: Abstraction has 16090 states and 23043 transitions. [2021-12-07 00:17:05,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:17:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 16090 states and 23043 transitions. [2021-12-07 00:17:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-07 00:17:05,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:17:05,376 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:17:05,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:17:05,376 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:17:05,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:05,376 INFO L85 PathProgramCache]: Analyzing trace with hash -604662956, now seen corresponding path program 1 times [2021-12-07 00:17:05,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:05,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750097615] [2021-12-07 00:17:05,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:05,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:17:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:17:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:17:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:17:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:17:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:17:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:17:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:17:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:17:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:17:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:17:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:17:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:17:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:17:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:17:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:17:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:17:05,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:05,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750097615] [2021-12-07 00:17:05,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750097615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:17:05,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:17:05,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:17:05,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079042160] [2021-12-07 00:17:05,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:17:05,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:17:05,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:05,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:17:05,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:17:05,631 INFO L87 Difference]: Start difference. First operand 16090 states and 23043 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:17:26,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:17:28,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:17:31,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:17:33,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:17:33,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:17:33,728 INFO L93 Difference]: Finished difference Result 16294 states and 23371 transitions. [2021-12-07 00:17:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:17:33,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2021-12-07 00:17:33,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:17:33,778 INFO L225 Difference]: With dead ends: 16294 [2021-12-07 00:17:33,778 INFO L226 Difference]: Without dead ends: 16292 [2021-12-07 00:17:33,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:17:33,785 INFO L933 BasicCegarLoop]: 4926 mSDtfsCounter, 10721 mSDsluCounter, 3948 mSDsCounter, 0 mSdLazyCounter, 8328 mSolverCounterSat, 8338 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10976 SdHoareTripleChecker+Valid, 8874 SdHoareTripleChecker+Invalid, 16668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8328 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:17:33,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10976 Valid, 8874 Invalid, 16668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8328 Invalid, 2 Unknown, 0 Unchecked, 27.0s Time] [2021-12-07 00:17:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16292 states. [2021-12-07 00:17:34,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16292 to 16088. [2021-12-07 00:17:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16088 states, 10654 states have (on average 1.2704148676553406) internal successors, (13535), 10832 states have internal predecessors, (13535), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:17:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16088 states to 16088 states and 23041 transitions. [2021-12-07 00:17:34,691 INFO L78 Accepts]: Start accepts. Automaton has 16088 states and 23041 transitions. Word has length 109 [2021-12-07 00:17:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:17:34,691 INFO L470 AbstractCegarLoop]: Abstraction has 16088 states and 23041 transitions. [2021-12-07 00:17:34,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:17:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16088 states and 23041 transitions. [2021-12-07 00:17:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-07 00:17:34,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:17:34,693 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:17:34,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:17:34,693 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:17:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1336590146, now seen corresponding path program 1 times [2021-12-07 00:17:34,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:34,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443831553] [2021-12-07 00:17:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:34,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:17:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:17:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:17:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:17:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:17:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:17:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:17:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:17:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:17:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:17:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:17:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:17:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:17:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:17:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:17:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:17:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:17:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:17:34,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:34,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443831553] [2021-12-07 00:17:34,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443831553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:17:34,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:17:34,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:17:34,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703026530] [2021-12-07 00:17:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:17:34,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:17:34,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:17:34,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:17:34,912 INFO L87 Difference]: Start difference. First operand 16088 states and 23041 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:17:59,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:18:01,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:18:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:18:02,171 INFO L93 Difference]: Finished difference Result 16292 states and 23369 transitions. [2021-12-07 00:18:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:18:02,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 115 [2021-12-07 00:18:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:18:02,213 INFO L225 Difference]: With dead ends: 16292 [2021-12-07 00:18:02,213 INFO L226 Difference]: Without dead ends: 16290 [2021-12-07 00:18:02,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:18:02,218 INFO L933 BasicCegarLoop]: 4946 mSDtfsCounter, 10646 mSDsluCounter, 3946 mSDsCounter, 0 mSdLazyCounter, 8347 mSolverCounterSat, 8338 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10901 SdHoareTripleChecker+Valid, 8892 SdHoareTripleChecker+Invalid, 16687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8347 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:18:02,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10901 Valid, 8892 Invalid, 16687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8347 Invalid, 2 Unknown, 0 Unchecked, 26.1s Time] [2021-12-07 00:18:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16290 states. [2021-12-07 00:18:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16290 to 16086. [2021-12-07 00:18:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16086 states, 10653 states have (on average 1.270346381301042) internal successors, (13533), 10830 states have internal predecessors, (13533), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:18:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16086 states to 16086 states and 23039 transitions. [2021-12-07 00:18:03,132 INFO L78 Accepts]: Start accepts. Automaton has 16086 states and 23039 transitions. Word has length 115 [2021-12-07 00:18:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:18:03,133 INFO L470 AbstractCegarLoop]: Abstraction has 16086 states and 23039 transitions. [2021-12-07 00:18:03,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:18:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16086 states and 23039 transitions. [2021-12-07 00:18:03,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-07 00:18:03,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:18:03,135 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:18:03,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:18:03,135 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:18:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:03,135 INFO L85 PathProgramCache]: Analyzing trace with hash -453891063, now seen corresponding path program 1 times [2021-12-07 00:18:03,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:03,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308072549] [2021-12-07 00:18:03,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:03,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:18:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:18:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:18:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:18:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:18:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:18:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:18:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:18:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:18:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:18:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:18:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:18:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:18:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:18:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:18:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:18:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:03,377 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:18:03,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:03,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308072549] [2021-12-07 00:18:03,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308072549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:18:03,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:18:03,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:18:03,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237073330] [2021-12-07 00:18:03,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:18:03,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:18:03,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:03,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:18:03,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:18:03,379 INFO L87 Difference]: Start difference. First operand 16086 states and 23039 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-07 00:18:26,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:18:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:18:27,808 INFO L93 Difference]: Finished difference Result 16290 states and 23367 transitions. [2021-12-07 00:18:27,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:18:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 121 [2021-12-07 00:18:27,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:18:27,849 INFO L225 Difference]: With dead ends: 16290 [2021-12-07 00:18:27,849 INFO L226 Difference]: Without dead ends: 16288 [2021-12-07 00:18:27,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:18:27,855 INFO L933 BasicCegarLoop]: 4944 mSDtfsCounter, 10638 mSDsluCounter, 3948 mSDsCounter, 0 mSdLazyCounter, 8353 mSolverCounterSat, 8335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10891 SdHoareTripleChecker+Valid, 8892 SdHoareTripleChecker+Invalid, 16688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8335 IncrementalHoareTripleChecker+Valid, 8353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:18:27,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10891 Valid, 8892 Invalid, 16688 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8335 Valid, 8353 Invalid, 0 Unknown, 0 Unchecked, 23.3s Time] [2021-12-07 00:18:27,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16288 states. [2021-12-07 00:18:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16288 to 16084. [2021-12-07 00:18:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16084 states, 10652 states have (on average 1.2702778820878708) internal successors, (13531), 10828 states have internal predecessors, (13531), 4397 states have call successors, (4397), 975 states have call predecessors, (4397), 1018 states have return successors, (5109), 4379 states have call predecessors, (5109), 4395 states have call successors, (5109) [2021-12-07 00:18:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16084 states to 16084 states and 23037 transitions. [2021-12-07 00:18:28,790 INFO L78 Accepts]: Start accepts. Automaton has 16084 states and 23037 transitions. Word has length 121 [2021-12-07 00:18:28,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:18:28,790 INFO L470 AbstractCegarLoop]: Abstraction has 16084 states and 23037 transitions. [2021-12-07 00:18:28,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-07 00:18:28,790 INFO L276 IsEmpty]: Start isEmpty. Operand 16084 states and 23037 transitions. [2021-12-07 00:18:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-07 00:18:28,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:18:28,792 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:18:28,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:18:28,792 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:18:28,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:28,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1580995333, now seen corresponding path program 1 times [2021-12-07 00:18:28,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:28,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220970043] [2021-12-07 00:18:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:28,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:18:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:18:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:18:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:18:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:18:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:18:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:18:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:18:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:18:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:18:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:18:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 00:18:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:18:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:18:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:18:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:18:29,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:29,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220970043] [2021-12-07 00:18:29,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220970043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:18:29,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:18:29,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:18:29,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129909493] [2021-12-07 00:18:29,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:18:29,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:18:29,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:29,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:18:29,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:18:29,311 INFO L87 Difference]: Start difference. First operand 16084 states and 23037 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:19:14,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:16,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:18,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:20,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:21,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:24,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:26,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:28,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:30,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:19:32,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:19:32,246 INFO L93 Difference]: Finished difference Result 20471 states and 30106 transitions. [2021-12-07 00:19:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 00:19:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2021-12-07 00:19:32,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:19:32,306 INFO L225 Difference]: With dead ends: 20471 [2021-12-07 00:19:32,307 INFO L226 Difference]: Without dead ends: 20469 [2021-12-07 00:19:32,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-12-07 00:19:32,315 INFO L933 BasicCegarLoop]: 9004 mSDtfsCounter, 9806 mSDsluCounter, 26396 mSDsCounter, 0 mSdLazyCounter, 23632 mSolverCounterSat, 9617 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10690 SdHoareTripleChecker+Valid, 35400 SdHoareTripleChecker+Invalid, 33257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9617 IncrementalHoareTripleChecker+Valid, 23632 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:19:32,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10690 Valid, 35400 Invalid, 33257 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9617 Valid, 23632 Invalid, 8 Unknown, 0 Unchecked, 60.9s Time] [2021-12-07 00:19:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20469 states. [2021-12-07 00:19:33,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20469 to 18841. [2021-12-07 00:19:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18841 states, 12265 states have (on average 1.269710558499796) internal successors, (15573), 12440 states have internal predecessors, (15573), 5451 states have call successors, (5451), 979 states have call predecessors, (5451), 1108 states have return successors, (6347), 5548 states have call predecessors, (6347), 5449 states have call successors, (6347) [2021-12-07 00:19:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 27371 transitions. [2021-12-07 00:19:33,639 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 27371 transitions. Word has length 127 [2021-12-07 00:19:33,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:19:33,639 INFO L470 AbstractCegarLoop]: Abstraction has 18841 states and 27371 transitions. [2021-12-07 00:19:33,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:19:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 27371 transitions. [2021-12-07 00:19:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-07 00:19:33,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:19:33,641 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:19:33,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 00:19:33,641 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:19:33,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:19:33,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1390777123, now seen corresponding path program 1 times [2021-12-07 00:19:33,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:19:33,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150535680] [2021-12-07 00:19:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:19:33,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:19:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:19:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:19:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:19:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:19:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:19:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:19:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:19:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:19:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:19:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:19:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:19:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:19:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:19:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:19:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:19:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:19:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:19:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:19:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:19:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:19:33,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:19:33,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150535680] [2021-12-07 00:19:33,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150535680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:19:33,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:19:33,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:19:33,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725889960] [2021-12-07 00:19:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:19:33,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:19:33,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:19:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:19:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:19:33,906 INFO L87 Difference]: Start difference. First operand 18841 states and 27371 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:19:58,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:00,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:01,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:05,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:20:06,024 INFO L93 Difference]: Finished difference Result 19351 states and 28265 transitions. [2021-12-07 00:20:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:20:06,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2021-12-07 00:20:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:20:06,079 INFO L225 Difference]: With dead ends: 19351 [2021-12-07 00:20:06,079 INFO L226 Difference]: Without dead ends: 19349 [2021-12-07 00:20:06,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:20:06,087 INFO L933 BasicCegarLoop]: 4917 mSDtfsCounter, 10699 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 8320 mSolverCounterSat, 8338 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10953 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 16659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8338 IncrementalHoareTripleChecker+Valid, 8320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:20:06,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10953 Valid, 8861 Invalid, 16659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8338 Valid, 8320 Invalid, 1 Unknown, 0 Unchecked, 30.4s Time] [2021-12-07 00:20:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19349 states. [2021-12-07 00:20:07,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19349 to 18839. [2021-12-07 00:20:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18839 states, 12264 states have (on average 1.2696510110893673) internal successors, (15571), 12438 states have internal predecessors, (15571), 5451 states have call successors, (5451), 979 states have call predecessors, (5451), 1108 states have return successors, (6347), 5548 states have call predecessors, (6347), 5449 states have call successors, (6347) [2021-12-07 00:20:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18839 states to 18839 states and 27369 transitions. [2021-12-07 00:20:07,333 INFO L78 Accepts]: Start accepts. Automaton has 18839 states and 27369 transitions. Word has length 127 [2021-12-07 00:20:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:20:07,333 INFO L470 AbstractCegarLoop]: Abstraction has 18839 states and 27369 transitions. [2021-12-07 00:20:07,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:20:07,334 INFO L276 IsEmpty]: Start isEmpty. Operand 18839 states and 27369 transitions. [2021-12-07 00:20:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-07 00:20:07,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:20:07,336 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-07 00:20:07,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 00:20:07,336 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:20:07,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:20:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2146712401, now seen corresponding path program 1 times [2021-12-07 00:20:07,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:20:07,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986676934] [2021-12-07 00:20:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:20:07,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:20:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:20:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:20:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:20:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:20:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:20:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:20:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:20:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:20:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:20:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:20:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:20:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-07 00:20:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-07 00:20:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-07 00:20:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-07 00:20:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-07 00:20:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:07,614 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-07 00:20:07,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:20:07,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986676934] [2021-12-07 00:20:07,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986676934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:20:07,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:20:07,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:20:07,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842232995] [2021-12-07 00:20:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:20:07,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:20:07,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:20:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:20:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:20:07,615 INFO L87 Difference]: Start difference. First operand 18839 states and 27369 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:20:35,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:39,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:41,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:43,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:20:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:20:45,473 INFO L93 Difference]: Finished difference Result 21311 states and 31494 transitions. [2021-12-07 00:20:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:20:45,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 132 [2021-12-07 00:20:45,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:20:45,544 INFO L225 Difference]: With dead ends: 21311 [2021-12-07 00:20:45,544 INFO L226 Difference]: Without dead ends: 21309 [2021-12-07 00:20:45,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:20:45,557 INFO L933 BasicCegarLoop]: 5312 mSDtfsCounter, 4854 mSDsluCounter, 11234 mSDsCounter, 0 mSdLazyCounter, 14243 mSolverCounterSat, 4296 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5537 SdHoareTripleChecker+Valid, 16546 SdHoareTripleChecker+Invalid, 18542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4296 IncrementalHoareTripleChecker+Valid, 14243 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:20:45,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5537 Valid, 16546 Invalid, 18542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4296 Valid, 14243 Invalid, 3 Unknown, 0 Unchecked, 36.0s Time] [2021-12-07 00:20:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21309 states. [2021-12-07 00:20:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21309 to 18847. [2021-12-07 00:20:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18847 states, 12270 states have (on average 1.269356153219234) internal successors, (15575), 12444 states have internal predecessors, (15575), 5451 states have call successors, (5451), 981 states have call predecessors, (5451), 1110 states have return successors, (6347), 5548 states have call predecessors, (6347), 5449 states have call successors, (6347) [2021-12-07 00:20:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18847 states to 18847 states and 27373 transitions. [2021-12-07 00:20:46,921 INFO L78 Accepts]: Start accepts. Automaton has 18847 states and 27373 transitions. Word has length 132 [2021-12-07 00:20:46,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:20:46,921 INFO L470 AbstractCegarLoop]: Abstraction has 18847 states and 27373 transitions. [2021-12-07 00:20:46,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:20:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 18847 states and 27373 transitions. [2021-12-07 00:20:46,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-07 00:20:46,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:20:46,923 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:20:46,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 00:20:46,924 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:20:46,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:20:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1478532250, now seen corresponding path program 1 times [2021-12-07 00:20:46,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:20:46,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063972557] [2021-12-07 00:20:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:20:46,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:20:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:20:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:20:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:20:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:20:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:20:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:20:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:20:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:20:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:20:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:20:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:20:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 00:20:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:20:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:20:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:20:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-07 00:20:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:20:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:20:47,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:20:47,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063972557] [2021-12-07 00:20:47,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063972557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:20:47,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:20:47,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:20:47,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609229025] [2021-12-07 00:20:47,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:20:47,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:20:47,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:20:47,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:20:47,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:20:47,191 INFO L87 Difference]: Start difference. First operand 18847 states and 27373 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:21:13,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:15,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:16,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:20,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:22,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:25,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:21:26,261 INFO L93 Difference]: Finished difference Result 21053 states and 31087 transitions. [2021-12-07 00:21:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:21:26,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 135 [2021-12-07 00:21:26,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:21:26,318 INFO L225 Difference]: With dead ends: 21053 [2021-12-07 00:21:26,318 INFO L226 Difference]: Without dead ends: 21051 [2021-12-07 00:21:26,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:21:26,325 INFO L933 BasicCegarLoop]: 5166 mSDtfsCounter, 8109 mSDsluCounter, 13394 mSDsCounter, 0 mSdLazyCounter, 9859 mSolverCounterSat, 5765 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8694 SdHoareTripleChecker+Valid, 18560 SdHoareTripleChecker+Invalid, 15627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5765 IncrementalHoareTripleChecker+Valid, 9859 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:21:26,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8694 Valid, 18560 Invalid, 15627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5765 Valid, 9859 Invalid, 3 Unknown, 0 Unchecked, 37.1s Time] [2021-12-07 00:21:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21051 states. [2021-12-07 00:21:27,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21051 to 18911. [2021-12-07 00:21:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18911 states, 12322 states have (on average 1.2682194448953092) internal successors, (15627), 12496 states have internal predecessors, (15627), 5451 states have call successors, (5451), 993 states have call predecessors, (5451), 1122 states have return successors, (6347), 5548 states have call predecessors, (6347), 5449 states have call successors, (6347) [2021-12-07 00:21:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18911 states to 18911 states and 27425 transitions. [2021-12-07 00:21:27,611 INFO L78 Accepts]: Start accepts. Automaton has 18911 states and 27425 transitions. Word has length 135 [2021-12-07 00:21:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:21:27,611 INFO L470 AbstractCegarLoop]: Abstraction has 18911 states and 27425 transitions. [2021-12-07 00:21:27,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:21:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 18911 states and 27425 transitions. [2021-12-07 00:21:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-07 00:21:27,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:21:27,614 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:21:27,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 00:21:27,614 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:21:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:21:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1758702357, now seen corresponding path program 1 times [2021-12-07 00:21:27,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:21:27,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686354022] [2021-12-07 00:21:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:21:27,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:21:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:21:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:21:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:21:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:21:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:21:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:21:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:21:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:21:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:21:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:21:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:21:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:21:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:21:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:21:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:21:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:21:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:21:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:21:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:21:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 00:21:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:21:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:21:27,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:21:27,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686354022] [2021-12-07 00:21:27,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686354022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:21:27,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:21:27,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:21:27,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850464707] [2021-12-07 00:21:27,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:21:27,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:21:27,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:21:27,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:21:27,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:21:27,850 INFO L87 Difference]: Start difference. First operand 18911 states and 27425 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:21:33,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:55,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:21:59,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:22:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:22:01,211 INFO L93 Difference]: Finished difference Result 19421 states and 28319 transitions. [2021-12-07 00:22:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:22:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2021-12-07 00:22:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:22:01,264 INFO L225 Difference]: With dead ends: 19421 [2021-12-07 00:22:01,264 INFO L226 Difference]: Without dead ends: 19419 [2021-12-07 00:22:01,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:22:01,271 INFO L933 BasicCegarLoop]: 4938 mSDtfsCounter, 10622 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 8338 mSolverCounterSat, 8334 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10876 SdHoareTripleChecker+Valid, 8881 SdHoareTripleChecker+Invalid, 16674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8334 IncrementalHoareTripleChecker+Valid, 8338 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:22:01,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10876 Valid, 8881 Invalid, 16674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8334 Valid, 8338 Invalid, 2 Unknown, 0 Unchecked, 31.7s Time] [2021-12-07 00:22:01,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2021-12-07 00:22:02,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 18909. [2021-12-07 00:22:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18909 states, 12321 states have (on average 1.2681600519438356) internal successors, (15625), 12494 states have internal predecessors, (15625), 5451 states have call successors, (5451), 993 states have call predecessors, (5451), 1122 states have return successors, (6347), 5548 states have call predecessors, (6347), 5449 states have call successors, (6347) [2021-12-07 00:22:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18909 states to 18909 states and 27423 transitions. [2021-12-07 00:22:02,531 INFO L78 Accepts]: Start accepts. Automaton has 18909 states and 27423 transitions. Word has length 133 [2021-12-07 00:22:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:22:02,531 INFO L470 AbstractCegarLoop]: Abstraction has 18909 states and 27423 transitions. [2021-12-07 00:22:02,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 00:22:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 18909 states and 27423 transitions. [2021-12-07 00:22:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-07 00:22:02,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:22:02,534 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:22:02,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-07 00:22:02,534 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_net_sock__double_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:22:02,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:22:02,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1458474147, now seen corresponding path program 1 times [2021-12-07 00:22:02,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:22:02,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076516313] [2021-12-07 00:22:02,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:22:02,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:22:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:22:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:22:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:22:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:22:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:22:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-07 00:22:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 00:22:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 00:22:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 00:22:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:22:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:22:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:22:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:22:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 00:22:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-07 00:22:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:22:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:22:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-07 00:22:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:22:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-07 00:22:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-07 00:22:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:22:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 00:22:02,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:22:02,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076516313] [2021-12-07 00:22:02,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076516313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:22:02,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:22:02,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:22:02,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561808054] [2021-12-07 00:22:02,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:22:02,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:22:02,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:22:02,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:22:02,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:22:02,924 INFO L87 Difference]: Start difference. First operand 18909 states and 27423 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (25), 9 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-07 00:23:26,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:28,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:34,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:36,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:38,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:40,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:43,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:45,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:51,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:23:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:23:53,021 INFO L93 Difference]: Finished difference Result 31711 states and 46795 transitions. [2021-12-07 00:23:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-07 00:23:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (25), 9 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 140 [2021-12-07 00:23:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:23:53,124 INFO L225 Difference]: With dead ends: 31711 [2021-12-07 00:23:53,124 INFO L226 Difference]: Without dead ends: 31709 [2021-12-07 00:23:53,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2021-12-07 00:23:53,140 INFO L933 BasicCegarLoop]: 4792 mSDtfsCounter, 20996 mSDsluCounter, 8303 mSDsCounter, 0 mSdLazyCounter, 42966 mSolverCounterSat, 21932 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21695 SdHoareTripleChecker+Valid, 13095 SdHoareTripleChecker+Invalid, 64905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 21932 IncrementalHoareTripleChecker+Valid, 42966 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:23:53,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21695 Valid, 13095 Invalid, 64905 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [21932 Valid, 42966 Invalid, 7 Unknown, 0 Unchecked, 106.2s Time] [2021-12-07 00:23:53,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31709 states. [2021-12-07 00:23:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31709 to 28327. [2021-12-07 00:23:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28327 states, 18476 states have (on average 1.268564624377571) internal successors, (23438), 18733 states have internal predecessors, (23438), 8164 states have call successors, (8164), 1484 states have call predecessors, (8164), 1672 states have return successors, (9507), 8300 states have call predecessors, (9507), 8162 states have call successors, (9507) [2021-12-07 00:23:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28327 states to 28327 states and 41109 transitions. [2021-12-07 00:23:55,275 INFO L78 Accepts]: Start accepts. Automaton has 28327 states and 41109 transitions. Word has length 140 [2021-12-07 00:23:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:23:55,275 INFO L470 AbstractCegarLoop]: Abstraction has 28327 states and 41109 transitions. [2021-12-07 00:23:55,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (25), 9 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-07 00:23:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 28327 states and 41109 transitions. [2021-12-07 00:23:55,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-07 00:23:55,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:23:55,278 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:23:55,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 00:23:55,278 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-12-07 00:23:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:23:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash -469344121, now seen corresponding path program 1 times [2021-12-07 00:23:55,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:23:55,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244406117] [2021-12-07 00:23:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:23:55,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:23:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:23:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:23:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:23:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 00:23:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-07 00:23:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:23:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:23:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:23:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-07 00:23:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:23:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-07 00:23:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-07 00:23:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:23:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:23:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 00:23:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-07 00:23:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:23:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-07 00:23:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-07 00:23:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 00:23:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-07 00:23:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:23:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:23:55,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:23:55,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244406117] [2021-12-07 00:23:55,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244406117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:23:55,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:23:55,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:23:55,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703405081] [2021-12-07 00:23:55,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:23:55,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:23:55,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:23:55,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:23:55,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:23:55,535 INFO L87 Difference]: Start difference. First operand 28327 states and 41109 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)