./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:34,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:34,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:34,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:34,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:34,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:34,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:34,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:34,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:34,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:34,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:34,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:34,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:34,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:34,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:34,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:34,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:34,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:34,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:34,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:34,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:34,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:34,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:34,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:34,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:34,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:34,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:34,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:34,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:34,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:34,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:34,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:34,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:34,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:34,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:34,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:34,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:34,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:34,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:34,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:34,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:34,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:41:34,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:34,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:34,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:34,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:34,785 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:34,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:34,786 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:34,786 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:41:34,786 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:34,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:34,787 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:41:34,787 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:41:34,788 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:34,788 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:41:34,788 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:41:34,788 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:41:34,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:34,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:41:34,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:34,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:34,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:34,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:34,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:41:34,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:34,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:34,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:34,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:34,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:34,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:34,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:34,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:34,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:34,795 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:41:34,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:41:34,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:34,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:34,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:34,796 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b [2021-11-12 22:41:35,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:35,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:35,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:35,237 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:35,238 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:35,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-12 22:41:35,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/e2f1c9d1e/63c9795fb21a4e95af71aa11e489a518/FLAG1984dde56 [2021-11-12 22:41:36,516 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:36,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-12 22:41:36,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/e2f1c9d1e/63c9795fb21a4e95af71aa11e489a518/FLAG1984dde56 [2021-11-12 22:41:36,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/e2f1c9d1e/63c9795fb21a4e95af71aa11e489a518 [2021-11-12 22:41:36,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:36,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:36,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:36,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:36,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:36,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:36" (1/1) ... [2021-11-12 22:41:36,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aad79ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:36, skipping insertion in model container [2021-11-12 22:41:36,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:36" (1/1) ... [2021-11-12 22:41:36,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:37,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:39,670 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,763 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,777 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,797 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,835 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,888 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,923 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,952 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,965 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:39,993 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,008 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,035 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,045 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,056 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,065 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,076 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,086 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,088 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,098 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,189 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,190 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,191 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,208 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,223 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,231 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,247 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,254 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,280 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,285 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,287 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,298 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,302 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,310 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,331 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,352 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,371 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,481 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,512 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,522 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,550 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,559 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,580 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,580 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,581 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,968 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,969 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,969 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,970 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,971 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,978 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:40,979 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:41,003 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:41,004 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:41,004 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:41,009 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:41,380 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:41,394 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:42,130 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:42,130 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:41:42,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-12 22:41:42,928 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-12 22:41:42,929 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-12 22:41:42,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-12 22:41:42,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-12 22:41:42,931 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-12 22:41:42,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-12 22:41:42,934 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-12 22:41:42,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-12 22:41:42,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-12 22:41:42,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-12 22:41:42,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-12 22:41:42,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-12 22:41:42,943 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-12 22:41:42,943 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-12 22:41:42,944 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-12 22:41:42,944 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-12 22:41:42,945 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-12 22:41:42,947 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-12 22:41:42,947 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-12 22:41:42,948 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-12 22:41:42,948 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-12 22:41:42,949 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-12 22:41:42,950 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-12 22:41:42,951 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-12 22:41:42,952 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-12 22:41:42,952 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-12 22:41:42,953 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-12 22:41:42,953 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-12 22:41:42,955 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-12 22:41:42,956 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-12 22:41:42,956 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-12 22:41:42,957 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-12 22:41:42,957 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-12 22:41:42,958 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-12 22:41:42,958 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-12 22:41:42,959 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-12 22:41:42,959 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-12 22:41:42,960 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-12 22:41:42,960 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-12 22:41:42,961 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-12 22:41:42,962 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-12 22:41:42,962 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-12 22:41:42,963 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-12 22:41:42,964 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-12 22:41:42,964 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-12 22:41:42,965 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-12 22:41:42,966 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-12 22:41:42,967 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-12 22:41:42,968 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-12 22:41:42,969 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-12 22:41:42,969 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-12 22:41:42,971 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-12 22:41:42,971 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-12 22:41:42,972 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-12 22:41:42,972 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-12 22:41:42,973 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-12 22:41:42,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-12 22:41:42,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-12 22:41:42,975 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-12 22:41:42,975 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-12 22:41:42,976 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-12 22:41:42,977 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-12 22:41:42,978 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-12 22:41:42,979 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-12 22:41:42,979 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-12 22:41:42,980 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-12 22:41:42,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-12 22:41:42,982 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-12 22:41:42,983 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-12 22:41:42,984 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-12 22:41:42,984 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-12 22:41:42,985 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-12 22:41:42,985 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-12 22:41:42,986 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-12 22:41:42,986 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-12 22:41:42,987 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-12 22:41:42,987 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-12 22:41:42,988 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-12 22:41:42,988 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-12 22:41:42,989 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-12 22:41:42,989 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-12 22:41:42,991 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-12 22:41:42,991 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-12 22:41:42,992 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-12 22:41:42,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-12 22:41:42,996 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-12 22:41:42,997 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-12 22:41:43,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:43,060 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:41:43,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e19e641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:43, skipping insertion in model container [2021-11-12 22:41:43,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:43,063 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:41:43,070 INFO L158 Benchmark]: Toolchain (without parser) took 6287.93ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 64.2MB in the beginning and 73.2MB in the end (delta: -9.1MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2021-11-12 22:41:43,071 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:43,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6285.36ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 73.2MB in the end (delta: -9.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2021-11-12 22:41:43,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6285.36ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 73.2MB in the end (delta: -9.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4886]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:45,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:45,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:45,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:45,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:45,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:45,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:45,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:45,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:45,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:45,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:45,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:45,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:45,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:45,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:45,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:45,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:45,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:45,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:45,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:45,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:45,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:45,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:45,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:45,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:45,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:45,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:45,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:45,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:45,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:45,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:45,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:45,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:45,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:45,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:45,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:45,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:45,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:45,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:45,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:45,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:45,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:41:45,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:45,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:45,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:45,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:45,907 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:45,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:45,908 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:45,908 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:45,908 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:45,909 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:45,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:45,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:45,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:45,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:45,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:45,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:41:45,912 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:41:45,912 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:41:45,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:45,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:45,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:45,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:45,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:41:45,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:45,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:45,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:45,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:45,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:45,916 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:41:45,916 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:45,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:45,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:45,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:45,917 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b [2021-11-12 22:41:46,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:46,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:46,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:46,381 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:46,382 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:46,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-12 22:41:46,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/faf709cd7/092acc31e4e74d1490372ef2f739451f/FLAGb1c94be41 [2021-11-12 22:41:47,904 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:47,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-12 22:41:47,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/faf709cd7/092acc31e4e74d1490372ef2f739451f/FLAGb1c94be41 [2021-11-12 22:41:48,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/data/faf709cd7/092acc31e4e74d1490372ef2f739451f [2021-11-12 22:41:48,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:48,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:48,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:48,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:48,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:48,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:48" (1/1) ... [2021-11-12 22:41:48,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb3fa21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:48, skipping insertion in model container [2021-11-12 22:41:48,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:48" (1/1) ... [2021-11-12 22:41:48,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:48,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:54,574 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-12 22:41:54,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-12 22:41:54,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-12 22:41:54,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-12 22:41:54,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-12 22:41:54,581 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-12 22:41:54,581 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-12 22:41:54,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-12 22:41:54,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-12 22:41:54,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-12 22:41:54,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-12 22:41:54,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-12 22:41:54,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-12 22:41:54,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-12 22:41:54,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-12 22:41:54,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-12 22:41:54,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-12 22:41:54,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-12 22:41:54,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-12 22:41:54,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-12 22:41:54,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-12 22:41:54,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-12 22:41:54,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-12 22:41:54,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-12 22:41:54,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-12 22:41:54,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-12 22:41:54,594 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-12 22:41:54,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-12 22:41:54,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-12 22:41:54,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-12 22:41:54,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-12 22:41:54,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-12 22:41:54,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-12 22:41:54,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-12 22:41:54,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-12 22:41:54,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-12 22:41:54,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-12 22:41:54,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-12 22:41:54,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-12 22:41:54,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-12 22:41:54,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-12 22:41:54,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-12 22:41:54,610 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-12 22:41:54,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-12 22:41:54,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-12 22:41:54,612 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-12 22:41:54,612 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-12 22:41:54,613 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-12 22:41:54,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-12 22:41:54,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-12 22:41:54,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-12 22:41:54,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-12 22:41:54,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-12 22:41:54,617 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-12 22:41:54,617 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-12 22:41:54,618 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-12 22:41:54,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-12 22:41:54,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-12 22:41:54,620 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-12 22:41:54,620 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-12 22:41:54,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-12 22:41:54,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-12 22:41:54,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-12 22:41:54,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-12 22:41:54,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-12 22:41:54,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-12 22:41:54,625 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-12 22:41:54,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-12 22:41:54,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-12 22:41:54,628 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-12 22:41:54,628 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-12 22:41:54,629 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-12 22:41:54,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-12 22:41:54,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-12 22:41:54,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-12 22:41:54,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-12 22:41:54,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-12 22:41:54,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-12 22:41:54,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-12 22:41:54,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-12 22:41:54,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-12 22:41:54,635 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-12 22:41:54,636 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-12 22:41:54,636 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-12 22:41:54,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-12 22:41:54,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-12 22:41:54,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-12 22:41:54,639 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-12 22:41:54,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:54,718 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:41:54,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:55,392 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-12 22:41:55,394 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-12 22:41:55,394 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-12 22:41:55,395 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-12 22:41:55,396 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-12 22:41:55,397 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-12 22:41:55,398 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-12 22:41:55,398 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-12 22:41:55,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-12 22:41:55,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-12 22:41:55,400 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-12 22:41:55,400 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-12 22:41:55,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-12 22:41:55,404 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-12 22:41:55,405 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-12 22:41:55,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-12 22:41:55,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-12 22:41:55,407 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-12 22:41:55,408 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-12 22:41:55,409 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-12 22:41:55,410 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-12 22:41:55,411 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-12 22:41:55,411 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-12 22:41:55,412 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-12 22:41:55,412 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-12 22:41:55,413 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-12 22:41:55,414 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-12 22:41:55,414 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-12 22:41:55,415 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-12 22:41:55,416 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-12 22:41:55,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-12 22:41:55,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-12 22:41:55,418 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-12 22:41:55,418 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-12 22:41:55,419 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-12 22:41:55,419 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-12 22:41:55,421 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-12 22:41:55,421 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-12 22:41:55,422 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-12 22:41:55,460 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-12 22:41:55,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-12 22:41:55,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-12 22:41:55,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-12 22:41:55,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-12 22:41:55,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-12 22:41:55,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-12 22:41:55,463 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-12 22:41:55,463 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-12 22:41:55,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-12 22:41:55,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-12 22:41:55,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-12 22:41:55,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-12 22:41:55,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-12 22:41:55,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-12 22:41:55,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-12 22:41:55,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-12 22:41:55,467 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-12 22:41:55,467 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-12 22:41:55,467 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-12 22:41:55,468 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-12 22:41:55,468 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-12 22:41:55,468 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-12 22:41:55,469 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-12 22:41:55,471 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-12 22:41:55,473 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-12 22:41:55,474 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-12 22:41:55,474 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-12 22:41:55,475 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-12 22:41:55,475 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-12 22:41:55,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-12 22:41:55,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-12 22:41:55,484 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-12 22:41:55,484 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-12 22:41:55,485 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-12 22:41:55,485 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-12 22:41:55,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-12 22:41:55,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-12 22:41:55,487 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-12 22:41:55,489 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-12 22:41:55,490 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-12 22:41:55,490 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-12 22:41:55,491 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-12 22:41:55,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-12 22:41:55,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-12 22:41:55,493 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-12 22:41:55,493 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-12 22:41:55,493 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-12 22:41:55,495 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-12 22:41:55,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:55,537 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:41:56,265 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-12 22:41:56,266 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-12 22:41:56,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-12 22:41:56,269 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-12 22:41:56,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-12 22:41:56,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-12 22:41:56,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-12 22:41:56,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-12 22:41:56,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-12 22:41:56,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-12 22:41:56,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-12 22:41:56,308 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-12 22:41:56,308 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-12 22:41:56,309 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-12 22:41:56,309 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-12 22:41:56,309 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-12 22:41:56,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-12 22:41:56,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-12 22:41:56,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-12 22:41:56,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-12 22:41:56,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-12 22:41:56,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-12 22:41:56,312 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-12 22:41:56,312 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-12 22:41:56,313 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-12 22:41:56,313 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-12 22:41:56,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-12 22:41:56,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-12 22:41:56,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-12 22:41:56,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-12 22:41:56,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-12 22:41:56,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-12 22:41:56,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-12 22:41:56,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-12 22:41:56,322 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-12 22:41:56,328 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-12 22:41:56,329 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-12 22:41:56,329 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-12 22:41:56,331 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-12 22:41:56,331 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-12 22:41:56,332 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-12 22:41:56,332 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-12 22:41:56,333 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-12 22:41:56,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-12 22:41:56,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-12 22:41:56,336 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-12 22:41:56,336 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-12 22:41:56,337 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-12 22:41:56,337 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-12 22:41:56,338 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-12 22:41:56,339 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-12 22:41:56,340 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-12 22:41:56,340 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-12 22:41:56,341 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-12 22:41:56,341 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-12 22:41:56,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-12 22:41:56,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-12 22:41:56,343 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-12 22:41:56,343 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-12 22:41:56,344 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-12 22:41:56,344 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-12 22:41:56,345 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-12 22:41:56,345 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-12 22:41:56,346 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-12 22:41:56,346 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-12 22:41:56,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-12 22:41:56,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-12 22:41:56,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-12 22:41:56,348 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-12 22:41:56,348 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-12 22:41:56,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-12 22:41:56,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-12 22:41:56,350 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-12 22:41:56,350 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-12 22:41:56,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-12 22:41:56,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-12 22:41:56,352 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-12 22:41:56,352 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-12 22:41:56,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-12 22:41:56,359 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-12 22:41:56,364 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-12 22:41:56,368 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-12 22:41:56,369 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-12 22:41:56,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-12 22:41:56,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-12 22:41:56,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-12 22:41:56,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-12 22:41:56,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-12 22:41:56,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:56,723 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:56,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56 WrapperNode [2021-11-12 22:41:56,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:56,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:56,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:56,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:56,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:56,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:57,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:57,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:57,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:57,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:57,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:57,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:57,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:57,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (1/1) ... [2021-11-12 22:41:57,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:57,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:58,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:58,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:41:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:41:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:41:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:41:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:41:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:41:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-12 22:41:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-12 22:41:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure u132_disable [2021-11-12 22:41:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_disable [2021-11-12 22:41:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:41:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:41:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure u132_remove [2021-11-12 22:41:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_remove [2021-11-12 22:41:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure u132_udev_init_kref [2021-11-12 22:41:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_udev_init_kref [2021-11-12 22:41:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:41:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:41:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:41:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:41:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:41:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:41:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure u132_udev_put_kref [2021-11-12 22:41:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_udev_put_kref [2021-11-12 22:41:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ftdi_elan_read_pcimem [2021-11-12 22:41:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ftdi_elan_read_pcimem [2021-11-12 22:41:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_requeue_work [2021-11-12 22:41:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_requeue_work [2021-11-12 22:41:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure u132_bus_suspend [2021-11-12 22:41:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_bus_suspend [2021-11-12 22:41:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure u132_get_frame [2021-11-12 22:41:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_get_frame [2021-11-12 22:41:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:41:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:41:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:41:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:41:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure edset_output [2021-11-12 22:41:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure edset_output [2021-11-12 22:41:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:41:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:41:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure read_roothub_info [2021-11-12 22:41:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure read_roothub_info [2021-11-12 22:41:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_scheduler_lock_of_u132 [2021-11-12 22:41:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_scheduler_lock_of_u132 [2021-11-12 22:41:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure edset_single [2021-11-12 22:41:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure edset_single [2021-11-12 22:41:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:41:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:41:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:41:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:41:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure edset_setup [2021-11-12 22:41:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure edset_setup [2021-11-12 22:41:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 22:41:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 22:41:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 22:41:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 22:41:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:41:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:41:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure u132_resume [2021-11-12 22:41:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_resume [2021-11-12 22:41:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2021-11-12 22:41:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2021-11-12 22:41:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 22:41:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 22:41:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-12 22:41:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-12 22:41:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:41:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:41:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_cancel_work [2021-11-12 22:41:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_cancel_work [2021-11-12 22:41:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-12 22:41:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-12 22:41:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:41:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:41:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-11-12 22:41:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-11-12 22:41:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_ring_work_scheduler [2021-11-12 22:41:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_ring_work_scheduler [2021-11-12 22:41:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:41:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:41:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 22:41:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 22:41:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:41:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:41:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:41:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:41:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure u132_u132_put_kref [2021-11-12 22:41:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_u132_put_kref [2021-11-12 22:41:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-12 22:41:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-12 22:41:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:41:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:41:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_endp_work_scheduler [2021-11-12 22:41:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_endp_work_scheduler [2021-11-12 22:41:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-12 22:41:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-12 22:41:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:41:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:41:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_monitor_work [2021-11-12 22:41:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_monitor_work [2021-11-12 22:41:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:41:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure u132_monitor_requeue_work [2021-11-12 22:41:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_monitor_requeue_work [2021-11-12 22:41:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_stop [2021-11-12 22:41:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_stop [2021-11-12 22:41:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:41:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:41:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:41:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_giveback_urb [2021-11-12 22:41:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_giveback_urb [2021-11-12 22:41:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:41:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:41:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ftdi_elan_write_pcimem [2021-11-12 22:41:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ftdi_elan_write_pcimem [2021-11-12 22:41:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_queue_work [2021-11-12 22:41:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_queue_work [2021-11-12 22:41:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_u132_module_lock [2021-11-12 22:41:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_u132_module_lock [2021-11-12 22:41:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_queue_work [2021-11-12 22:41:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_queue_work [2021-11-12 22:41:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-12 22:41:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-12 22:41:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-12 22:41:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-12 22:41:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:41:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:41:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_start [2021-11-12 22:41:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_start [2021-11-12 22:41:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:41:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:41:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ftdi_elan_edset_input [2021-11-12 22:41:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ftdi_elan_edset_input [2021-11-12 22:41:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure u132_to_hcd [2021-11-12 22:41:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_to_hcd [2021-11-12 22:41:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure u132_probe [2021-11-12 22:41:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_probe [2021-11-12 22:41:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_sw_lock_of_u132 [2021-11-12 22:41:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_sw_lock_of_u132 [2021-11-12 22:41:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-12 22:41:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-12 22:41:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_init_kref [2021-11-12 22:41:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_init_kref [2021-11-12 22:41:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_sw_lock_of_u132 [2021-11-12 22:41:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_sw_lock_of_u132 [2021-11-12 22:41:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:41:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 22:41:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 22:41:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-12 22:41:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-12 22:41:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:41:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:41:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:41:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:41:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure u132_udev_get_kref [2021-11-12 22:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_udev_get_kref [2021-11-12 22:41:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:41:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:41:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_u132 [2021-11-12 22:41:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_u132 [2021-11-12 22:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:41:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:41:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2021-11-12 22:41:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2021-11-12 22:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure u132_bus_resume [2021-11-12 22:41:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_bus_resume [2021-11-12 22:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_slock_of_u132_spin [2021-11-12 22:41:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_slock_of_u132_spin [2021-11-12 22:41:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:41:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_delete [2021-11-12 22:41:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_delete [2021-11-12 22:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:41:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2021-11-12 22:41:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2021-11-12 22:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:41:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:41:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:41:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_put_kref [2021-11-12 22:41:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_put_kref [2021-11-12 22:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:41:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_100 [2021-11-12 22:41:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_100 [2021-11-12 22:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:41:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_put_kref [2021-11-12 22:41:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_put_kref [2021-11-12 22:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-12 22:41:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-12 22:41:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_urb_dequeue [2021-11-12 22:41:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_urb_dequeue [2021-11-12 22:41:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:41:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:41:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:41:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:41:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-12 22:41:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-12 22:41:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_reset [2021-11-12 22:41:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_reset [2021-11-12 22:41:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 22:41:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 22:41:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:41:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:41:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:41:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:41:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:41:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:41:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure port_power [2021-11-12 22:41:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure port_power [2021-11-12 22:41:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:41:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:41:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:41:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:41:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:41:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:41:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:41:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:41:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:41:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:41:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:41:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:41:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2021-11-12 22:41:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2021-11-12 22:41:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:41:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:41:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:41:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:41:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-11-12 22:41:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-11-12 22:41:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_scheduler_lock_of_u132 [2021-11-12 22:41:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_scheduler_lock_of_u132 [2021-11-12 22:41:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_cancel_work [2021-11-12 22:41:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_cancel_work [2021-11-12 22:41:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:41:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:41:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:41:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:41:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-12 22:41:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-12 22:41:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-12 22:41:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-12 22:41:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-12 22:41:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_u132_module_lock [2021-11-12 22:41:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_u132_module_lock [2021-11-12 22:42:00,059 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:42:55,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:42:55,075 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:42:55,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:42:55 BoogieIcfgContainer [2021-11-12 22:42:55,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:42:55,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:42:55,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:42:55,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:42:55,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:41:48" (1/3) ... [2021-11-12 22:42:55,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a43645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:42:55, skipping insertion in model container [2021-11-12 22:42:55,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:56" (2/3) ... [2021-11-12 22:42:55,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a43645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:42:55, skipping insertion in model container [2021-11-12 22:42:55,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:42:55" (3/3) ... [2021-11-12 22:42:55,091 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-12 22:42:55,097 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:42:55,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-12 22:42:55,167 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:42:55,173 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:42:55,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-12 22:42:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 2139 states, 1430 states have (on average 1.3258741258741258) internal successors, (1896), 1522 states have internal predecessors, (1896), 565 states have call successors, (565), 115 states have call predecessors, (565), 114 states have return successors, (559), 527 states have call predecessors, (559), 559 states have call successors, (559) [2021-11-12 22:42:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-12 22:42:55,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:55,251 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:55,251 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:42:55,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:55,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1788017132, now seen corresponding path program 1 times [2021-11-12 22:42:55,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:55,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454848285] [2021-11-12 22:42:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:55,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:55,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:55,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:55,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:42:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:58,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:42:58,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:42:58,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:42:59,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:59,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454848285] [2021-11-12 22:42:59,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454848285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:59,135 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:59,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:42:59,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032139236] [2021-11-12 22:42:59,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:59,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:42:59,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:42:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:42:59,182 INFO L87 Difference]: Start difference. First operand has 2139 states, 1430 states have (on average 1.3258741258741258) internal successors, (1896), 1522 states have internal predecessors, (1896), 565 states have call successors, (565), 115 states have call predecessors, (565), 114 states have return successors, (559), 527 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 22:42:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:59,613 INFO L93 Difference]: Finished difference Result 4241 states and 6214 transitions. [2021-11-12 22:42:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:42:59,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 61 [2021-11-12 22:42:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:59,667 INFO L225 Difference]: With dead ends: 4241 [2021-11-12 22:42:59,667 INFO L226 Difference]: Without dead ends: 2119 [2021-11-12 22:42:59,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:42:59,701 INFO L933 BasicCegarLoop]: 2982 mSDtfsCounter, 2936 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 5962 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.14ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:59,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2938 Valid, 5962 Invalid, 2 Unknown, 0 Unchecked, 61.89ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 7.14ms Time] [2021-11-12 22:42:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2021-11-12 22:42:59,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2119. [2021-11-12 22:42:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 1419 states have (on average 1.302325581395349) internal successors, (1848), 1506 states have internal predecessors, (1848), 559 states have call successors, (559), 114 states have call predecessors, (559), 113 states have return successors, (557), 525 states have call predecessors, (557), 557 states have call successors, (557) [2021-11-12 22:42:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2964 transitions. [2021-11-12 22:42:59,971 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2964 transitions. Word has length 61 [2021-11-12 22:42:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:59,973 INFO L470 AbstractCegarLoop]: Abstraction has 2119 states and 2964 transitions. [2021-11-12 22:42:59,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 22:42:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2964 transitions. [2021-11-12 22:42:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-12 22:42:59,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:59,978 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:00,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:43:00,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:00,202 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:00,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:00,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1487276142, now seen corresponding path program 1 times [2021-11-12 22:43:00,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:00,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54757269] [2021-11-12 22:43:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:00,205 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:00,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:00,210 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:00,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:43:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:03,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:43:03,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:03,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:04,013 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:04,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54757269] [2021-11-12 22:43:04,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54757269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:04,013 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:04,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:43:04,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888666889] [2021-11-12 22:43:04,014 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:04,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:04,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:04,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:04,017 INFO L87 Difference]: Start difference. First operand 2119 states and 2964 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 22:43:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:04,266 INFO L93 Difference]: Finished difference Result 2119 states and 2964 transitions. [2021-11-12 22:43:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 67 [2021-11-12 22:43:04,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:04,288 INFO L225 Difference]: With dead ends: 2119 [2021-11-12 22:43:04,289 INFO L226 Difference]: Without dead ends: 2117 [2021-11-12 22:43:04,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:43:04,292 INFO L933 BasicCegarLoop]: 2960 mSDtfsCounter, 2905 mSDsluCounter, 5916 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 8876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.98ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:04,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 8876 Invalid, 2 Unknown, 0 Unchecked, 32.04ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.98ms Time] [2021-11-12 22:43:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2021-11-12 22:43:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2117. [2021-11-12 22:43:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1418 states have (on average 1.301833568406206) internal successors, (1846), 1504 states have internal predecessors, (1846), 559 states have call successors, (559), 114 states have call predecessors, (559), 113 states have return successors, (557), 525 states have call predecessors, (557), 557 states have call successors, (557) [2021-11-12 22:43:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2962 transitions. [2021-11-12 22:43:04,447 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2962 transitions. Word has length 67 [2021-11-12 22:43:04,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:04,448 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 2962 transitions. [2021-11-12 22:43:04,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 22:43:04,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2962 transitions. [2021-11-12 22:43:04,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-12 22:43:04,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:04,451 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] [2021-11-12 22:43:04,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:04,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:04,665 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:04,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2020854893, now seen corresponding path program 1 times [2021-11-12 22:43:04,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:04,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539557891] [2021-11-12 22:43:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:04,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:04,671 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:04,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:43:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:07,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:43:07,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:43:08,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:43:09,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:09,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539557891] [2021-11-12 22:43:09,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539557891] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:09,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:09,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 25 [2021-11-12 22:43:09,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414567073] [2021-11-12 22:43:09,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:09,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-12 22:43:09,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:09,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-12 22:43:09,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:43:09,656 INFO L87 Difference]: Start difference. First operand 2117 states and 2962 transitions. Second operand has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 10 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2021-11-12 22:43:12,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:12,697 INFO L93 Difference]: Finished difference Result 3824 states and 5338 transitions. [2021-11-12 22:43:12,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 22:43:12,698 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 10 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 69 [2021-11-12 22:43:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:12,723 INFO L225 Difference]: With dead ends: 3824 [2021-11-12 22:43:12,723 INFO L226 Difference]: Without dead ends: 2153 [2021-11-12 22:43:12,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:43:12,735 INFO L933 BasicCegarLoop]: 2957 mSDtfsCounter, 69 mSDsluCounter, 47068 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1704.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 50025 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 117.51ms SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1866.79ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:12,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 50025 Invalid, 796 Unknown, 0 Unchecked, 117.51ms Time], IncrementalHoareTripleChecker [269 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1866.79ms Time] [2021-11-12 22:43:12,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2021-11-12 22:43:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2129. [2021-11-12 22:43:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 1426 states have (on average 1.3001402524544179) internal successors, (1854), 1512 states have internal predecessors, (1854), 563 states have call successors, (563), 114 states have call predecessors, (563), 113 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2978 transitions. [2021-11-12 22:43:12,936 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2978 transitions. Word has length 69 [2021-11-12 22:43:12,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:12,936 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 2978 transitions. [2021-11-12 22:43:12,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 10 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2021-11-12 22:43:12,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2978 transitions. [2021-11-12 22:43:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 22:43:12,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:12,945 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:12,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:13,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:13,170 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:13,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:13,170 INFO L85 PathProgramCache]: Analyzing trace with hash 30076442, now seen corresponding path program 1 times [2021-11-12 22:43:13,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:13,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791351010] [2021-11-12 22:43:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:13,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:13,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:13,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:13,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:43:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:16,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:43:16,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:16,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:16,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:16,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791351010] [2021-11-12 22:43:16,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791351010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:16,986 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:16,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:43:16,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924273453] [2021-11-12 22:43:16,986 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:16,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:16,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:16,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:16,988 INFO L87 Difference]: Start difference. First operand 2129 states and 2978 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:43:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:17,169 INFO L93 Difference]: Finished difference Result 2129 states and 2978 transitions. [2021-11-12 22:43:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:17,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 73 [2021-11-12 22:43:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:17,191 INFO L225 Difference]: With dead ends: 2129 [2021-11-12 22:43:17,192 INFO L226 Difference]: Without dead ends: 2127 [2021-11-12 22:43:17,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:43:17,196 INFO L933 BasicCegarLoop]: 2958 mSDtfsCounter, 2900 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2902 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.68ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:17,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2902 Valid, 5914 Invalid, 2 Unknown, 0 Unchecked, 15.09ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.68ms Time] [2021-11-12 22:43:17,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2021-11-12 22:43:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2127. [2021-11-12 22:43:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1425 states have (on average 1.2996491228070175) internal successors, (1852), 1510 states have internal predecessors, (1852), 563 states have call successors, (563), 114 states have call predecessors, (563), 113 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2976 transitions. [2021-11-12 22:43:17,351 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2976 transitions. Word has length 73 [2021-11-12 22:43:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:17,354 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2976 transitions. [2021-11-12 22:43:17,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:43:17,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2976 transitions. [2021-11-12 22:43:17,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 22:43:17,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:17,356 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:17,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:17,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:17,573 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:17,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:17,574 INFO L85 PathProgramCache]: Analyzing trace with hash 899638919, now seen corresponding path program 1 times [2021-11-12 22:43:17,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:17,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626471886] [2021-11-12 22:43:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:17,577 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:17,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:17,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:17,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:43:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:20,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:43:20,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:20,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:21,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:21,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626471886] [2021-11-12 22:43:21,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626471886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:21,090 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:21,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:43:21,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319452704] [2021-11-12 22:43:21,091 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:21,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:21,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:21,092 INFO L87 Difference]: Start difference. First operand 2127 states and 2976 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:43:21,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:21,272 INFO L93 Difference]: Finished difference Result 2127 states and 2976 transitions. [2021-11-12 22:43:21,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:21,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 79 [2021-11-12 22:43:21,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:21,291 INFO L225 Difference]: With dead ends: 2127 [2021-11-12 22:43:21,291 INFO L226 Difference]: Without dead ends: 2125 [2021-11-12 22:43:21,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:43:21,294 INFO L933 BasicCegarLoop]: 2956 mSDtfsCounter, 2892 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:21,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 5910 Invalid, 2 Unknown, 0 Unchecked, 14.94ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.75ms Time] [2021-11-12 22:43:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2021-11-12 22:43:21,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 2125. [2021-11-12 22:43:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 1424 states have (on average 1.2991573033707866) internal successors, (1850), 1508 states have internal predecessors, (1850), 563 states have call successors, (563), 114 states have call predecessors, (563), 113 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2974 transitions. [2021-11-12 22:43:21,517 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2974 transitions. Word has length 79 [2021-11-12 22:43:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:21,518 INFO L470 AbstractCegarLoop]: Abstraction has 2125 states and 2974 transitions. [2021-11-12 22:43:21,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:43:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2974 transitions. [2021-11-12 22:43:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-12 22:43:21,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:21,520 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] [2021-11-12 22:43:21,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:21,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:21,741 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:21,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:21,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1031673593, now seen corresponding path program 1 times [2021-11-12 22:43:21,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:21,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097189787] [2021-11-12 22:43:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:21,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:21,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:21,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:21,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:43:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:24,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:43:24,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 22:43:25,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 22:43:26,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:26,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097189787] [2021-11-12 22:43:26,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097189787] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:26,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2074430122] [2021-11-12 22:43:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:26,550 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:43:26,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:43:26,562 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:43:26,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-12 22:43:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:29,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:43:29,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:43:30,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:43:31,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2074430122] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:31,243 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:43:31,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [17, 17] total 25 [2021-11-12 22:43:31,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123977636] [2021-11-12 22:43:31,243 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:31,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:43:31,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:31,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:43:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:43:31,245 INFO L87 Difference]: Start difference. First operand 2125 states and 2974 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:43:31,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:31,722 INFO L93 Difference]: Finished difference Result 2144 states and 2989 transitions. [2021-11-12 22:43:31,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:43:31,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 84 [2021-11-12 22:43:31,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:31,741 INFO L225 Difference]: With dead ends: 2144 [2021-11-12 22:43:31,742 INFO L226 Difference]: Without dead ends: 2142 [2021-11-12 22:43:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-12 22:43:31,745 INFO L933 BasicCegarLoop]: 2963 mSDtfsCounter, 2880 mSDsluCounter, 5953 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 8916 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.21ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.63ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:31,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2883 Valid, 8916 Invalid, 14 Unknown, 0 Unchecked, 33.21ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 42.63ms Time] [2021-11-12 22:43:31,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2021-11-12 22:43:31,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2140. [2021-11-12 22:43:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1435 states have (on average 1.2975609756097561) internal successors, (1862), 1519 states have internal predecessors, (1862), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2986 transitions. [2021-11-12 22:43:31,917 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2986 transitions. Word has length 84 [2021-11-12 22:43:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:31,919 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2986 transitions. [2021-11-12 22:43:31,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:43:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2986 transitions. [2021-11-12 22:43:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-12 22:43:31,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:31,928 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:31,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:32,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:32,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:43:32,347 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:32,348 INFO L85 PathProgramCache]: Analyzing trace with hash 939608448, now seen corresponding path program 1 times [2021-11-12 22:43:32,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:32,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840768126] [2021-11-12 22:43:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:32,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:32,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:32,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:43:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:34,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:43:34,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:35,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:35,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:35,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:35,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840768126] [2021-11-12 22:43:35,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840768126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:35,784 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:35,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:43:35,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276900384] [2021-11-12 22:43:35,784 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:35,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:35,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:35,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:35,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:35,786 INFO L87 Difference]: Start difference. First operand 2140 states and 2986 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 22:43:35,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:35,950 INFO L93 Difference]: Finished difference Result 2140 states and 2986 transitions. [2021-11-12 22:43:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:35,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 85 [2021-11-12 22:43:35,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:35,968 INFO L225 Difference]: With dead ends: 2140 [2021-11-12 22:43:35,968 INFO L226 Difference]: Without dead ends: 2138 [2021-11-12 22:43:35,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:43:35,971 INFO L933 BasicCegarLoop]: 2954 mSDtfsCounter, 2881 mSDsluCounter, 5904 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 8858 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.83ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:35,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2883 Valid, 8858 Invalid, 2 Unknown, 0 Unchecked, 18.70ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.83ms Time] [2021-11-12 22:43:35,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2021-11-12 22:43:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2138. [2021-11-12 22:43:36,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1434 states have (on average 1.297071129707113) internal successors, (1860), 1517 states have internal predecessors, (1860), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 2984 transitions. [2021-11-12 22:43:36,121 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 2984 transitions. Word has length 85 [2021-11-12 22:43:36,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:36,122 INFO L470 AbstractCegarLoop]: Abstraction has 2138 states and 2984 transitions. [2021-11-12 22:43:36,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 22:43:36,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 2984 transitions. [2021-11-12 22:43:36,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-12 22:43:36,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:36,124 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:36,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:36,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:36,345 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:36,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 646919525, now seen corresponding path program 1 times [2021-11-12 22:43:36,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:36,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447850360] [2021-11-12 22:43:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:36,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:36,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:36,350 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:36,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:43:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:38,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:43:38,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:39,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:39,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:39,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447850360] [2021-11-12 22:43:39,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447850360] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:39,638 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:39,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:43:39,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617110354] [2021-11-12 22:43:39,639 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:39,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:39,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:39,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:39,641 INFO L87 Difference]: Start difference. First operand 2138 states and 2984 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:43:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:39,816 INFO L93 Difference]: Finished difference Result 2138 states and 2984 transitions. [2021-11-12 22:43:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:39,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 91 [2021-11-12 22:43:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:39,834 INFO L225 Difference]: With dead ends: 2138 [2021-11-12 22:43:39,834 INFO L226 Difference]: Without dead ends: 2136 [2021-11-12 22:43:39,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:43:39,836 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 2873 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2875 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:39,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2875 Valid, 8852 Invalid, 2 Unknown, 0 Unchecked, 16.97ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.47ms Time] [2021-11-12 22:43:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-11-12 22:43:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2021-11-12 22:43:39,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1433 states have (on average 1.2965806001395674) internal successors, (1858), 1515 states have internal predecessors, (1858), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2982 transitions. [2021-11-12 22:43:39,997 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2982 transitions. Word has length 91 [2021-11-12 22:43:39,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:39,998 INFO L470 AbstractCegarLoop]: Abstraction has 2136 states and 2982 transitions. [2021-11-12 22:43:39,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:43:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2982 transitions. [2021-11-12 22:43:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-12 22:43:40,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:40,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:40,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:40,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:40,217 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:40,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:40,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1587490793, now seen corresponding path program 1 times [2021-11-12 22:43:40,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:40,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551856400] [2021-11-12 22:43:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:40,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:40,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:40,220 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:40,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:43:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:42,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:43:42,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 22:43:43,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 22:43:44,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:44,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551856400] [2021-11-12 22:43:44,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551856400] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:43:44,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [516616206] [2021-11-12 22:43:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:44,570 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:43:44,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:43:44,581 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:43:44,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-12 22:43:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:46,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:43:46,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:43:46,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:43:47,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [516616206] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:47,048 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:43:47,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-12 22:43:47,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27154500] [2021-11-12 22:43:47,049 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:47,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:43:47,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:47,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:43:47,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2021-11-12 22:43:47,050 INFO L87 Difference]: Start difference. First operand 2136 states and 2982 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-12 22:43:49,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:43:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:49,635 INFO L93 Difference]: Finished difference Result 2138 states and 2983 transitions. [2021-11-12 22:43:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:43:49,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2021-11-12 22:43:49,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:49,652 INFO L225 Difference]: With dead ends: 2138 [2021-11-12 22:43:49,652 INFO L226 Difference]: Without dead ends: 2136 [2021-11-12 22:43:49,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-12 22:43:49,657 INFO L933 BasicCegarLoop]: 2953 mSDtfsCounter, 33 mSDsluCounter, 11765 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2187.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 14718 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2192.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:49,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 14718 Invalid, 15 Unknown, 0 Unchecked, 21.16ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2192.07ms Time] [2021-11-12 22:43:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-11-12 22:43:49,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2021-11-12 22:43:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1433 states have (on average 1.2958827634333565) internal successors, (1857), 1515 states have internal predecessors, (1857), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:49,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2981 transitions. [2021-11-12 22:43:49,812 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2981 transitions. Word has length 95 [2021-11-12 22:43:49,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:49,813 INFO L470 AbstractCegarLoop]: Abstraction has 2136 states and 2981 transitions. [2021-11-12 22:43:49,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-12 22:43:49,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2981 transitions. [2021-11-12 22:43:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-12 22:43:49,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:49,816 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:49,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:50,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:50,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:50,232 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:50,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:50,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1307078380, now seen corresponding path program 1 times [2021-11-12 22:43:50,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:50,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025327391] [2021-11-12 22:43:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:50,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:50,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:50,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:50,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:43:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:52,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:43:52,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:53,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:43:53,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:53,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025327391] [2021-11-12 22:43:53,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025327391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:53,601 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:53,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:43:53,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942834937] [2021-11-12 22:43:53,602 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:53,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:53,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:53,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:53,603 INFO L87 Difference]: Start difference. First operand 2136 states and 2981 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 22:43:53,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:53,782 INFO L93 Difference]: Finished difference Result 2136 states and 2981 transitions. [2021-11-12 22:43:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:53,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 97 [2021-11-12 22:43:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:53,799 INFO L225 Difference]: With dead ends: 2136 [2021-11-12 22:43:53,799 INFO L226 Difference]: Without dead ends: 2134 [2021-11-12 22:43:53,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:43:53,801 INFO L933 BasicCegarLoop]: 2950 mSDtfsCounter, 2865 mSDsluCounter, 5896 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 8846 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.21ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:53,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2867 Valid, 8846 Invalid, 2 Unknown, 0 Unchecked, 16.56ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.21ms Time] [2021-11-12 22:43:53,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-12 22:43:53,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2134. [2021-11-12 22:43:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1432 states have (on average 1.295391061452514) internal successors, (1855), 1513 states have internal predecessors, (1855), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:43:53,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2979 transitions. [2021-11-12 22:43:53,962 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2979 transitions. Word has length 97 [2021-11-12 22:43:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:53,963 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 2979 transitions. [2021-11-12 22:43:53,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 22:43:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2979 transitions. [2021-11-12 22:43:53,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 22:43:53,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:53,968 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:54,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:54,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:54,181 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:43:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:54,182 INFO L85 PathProgramCache]: Analyzing trace with hash -500874874, now seen corresponding path program 1 times [2021-11-12 22:43:54,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:54,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911291562] [2021-11-12 22:43:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:54,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:54,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:54,184 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:54,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:43:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:56,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 22:43:56,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 22:43:57,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-12 22:43:59,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:59,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911291562] [2021-11-12 22:43:59,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911291562] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:43:59,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:43:59,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-12 22:43:59,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568382040] [2021-11-12 22:43:59,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:59,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:43:59,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:59,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:43:59,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:43:59,899 INFO L87 Difference]: Start difference. First operand 2134 states and 2979 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:44:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:01,921 INFO L93 Difference]: Finished difference Result 4851 states and 6878 transitions. [2021-11-12 22:44:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:44:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) Word has length 108 [2021-11-12 22:44:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:01,950 INFO L225 Difference]: With dead ends: 4851 [2021-11-12 22:44:01,950 INFO L226 Difference]: Without dead ends: 2752 [2021-11-12 22:44:01,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:44:01,961 INFO L933 BasicCegarLoop]: 3892 mSDtfsCounter, 773 mSDsluCounter, 33962 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1094.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 37854 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.18ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1204.76ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:01,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 37854 Invalid, 317 Unknown, 0 Unchecked, 62.18ms Time], IncrementalHoareTripleChecker [2 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1204.76ms Time] [2021-11-12 22:44:01,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-12 22:44:02,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2134. [2021-11-12 22:44:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1432 states have (on average 1.2946927374301676) internal successors, (1854), 1512 states have internal predecessors, (1854), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-12 22:44:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2978 transitions. [2021-11-12 22:44:02,156 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2978 transitions. Word has length 108 [2021-11-12 22:44:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:02,157 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 2978 transitions. [2021-11-12 22:44:02,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:44:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2978 transitions. [2021-11-12 22:44:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 22:44:02,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:02,159 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:02,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:02,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:02,381 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1791612701, now seen corresponding path program 1 times [2021-11-12 22:44:02,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:02,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39151489] [2021-11-12 22:44:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:02,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:02,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:02,386 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:02,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:44:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:04,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:04,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-12 22:44:05,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:44:05,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:05,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39151489] [2021-11-12 22:44:05,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39151489] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:05,985 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:05,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:05,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937331917] [2021-11-12 22:44:05,985 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:05,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:05,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:05,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:05,986 INFO L87 Difference]: Start difference. First operand 2134 states and 2978 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-12 22:44:08,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:44:13,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:13,365 INFO L93 Difference]: Finished difference Result 4370 states and 6045 transitions. [2021-11-12 22:44:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:13,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 112 [2021-11-12 22:44:13,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:13,386 INFO L225 Difference]: With dead ends: 4370 [2021-11-12 22:44:13,387 INFO L226 Difference]: Without dead ends: 2273 [2021-11-12 22:44:13,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:13,401 INFO L933 BasicCegarLoop]: 3065 mSDtfsCounter, 3022 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6438.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3022 SdHoareTripleChecker+Valid, 5150 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.04ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7101.23ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:13,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3022 Valid, 5150 Invalid, 1190 Unknown, 0 Unchecked, 24.04ms Time], IncrementalHoareTripleChecker [20 Valid, 1169 Invalid, 1 Unknown, 0 Unchecked, 7101.23ms Time] [2021-11-12 22:44:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-12 22:44:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2243. [2021-11-12 22:44:13,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 1518 states have (on average 1.2859025032938076) internal successors, (1952), 1598 states have internal predecessors, (1952), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3078 transitions. [2021-11-12 22:44:13,658 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3078 transitions. Word has length 112 [2021-11-12 22:44:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:13,658 INFO L470 AbstractCegarLoop]: Abstraction has 2243 states and 3078 transitions. [2021-11-12 22:44:13,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-12 22:44:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3078 transitions. [2021-11-12 22:44:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-12 22:44:13,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:13,661 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:13,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:13,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:13,876 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:13,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1020705901, now seen corresponding path program 1 times [2021-11-12 22:44:13,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:13,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412939426] [2021-11-12 22:44:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:13,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:13,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:13,879 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:13,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:44:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:16,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:16,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:16,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:17,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:17,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412939426] [2021-11-12 22:44:17,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412939426] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:17,233 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:17,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:17,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855186520] [2021-11-12 22:44:17,233 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:17,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:17,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:17,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:17,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:17,234 INFO L87 Difference]: Start difference. First operand 2243 states and 3078 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:44:17,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:17,413 INFO L93 Difference]: Finished difference Result 2243 states and 3078 transitions. [2021-11-12 22:44:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:17,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 103 [2021-11-12 22:44:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:17,430 INFO L225 Difference]: With dead ends: 2243 [2021-11-12 22:44:17,431 INFO L226 Difference]: Without dead ends: 2241 [2021-11-12 22:44:17,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:17,433 INFO L933 BasicCegarLoop]: 2946 mSDtfsCounter, 2859 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 8826 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.95ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:17,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2861 Valid, 8826 Invalid, 2 Unknown, 0 Unchecked, 13.05ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.95ms Time] [2021-11-12 22:44:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2021-11-12 22:44:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2241. [2021-11-12 22:44:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1517 states have (on average 1.2847725774555043) internal successors, (1949), 1596 states have internal predecessors, (1949), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3075 transitions. [2021-11-12 22:44:17,610 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3075 transitions. Word has length 103 [2021-11-12 22:44:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:17,611 INFO L470 AbstractCegarLoop]: Abstraction has 2241 states and 3075 transitions. [2021-11-12 22:44:17,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:44:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3075 transitions. [2021-11-12 22:44:17,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-12 22:44:17,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:17,613 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:17,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:17,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:17,837 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:17,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1645689226, now seen corresponding path program 1 times [2021-11-12 22:44:17,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:17,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875441188] [2021-11-12 22:44:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:17,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:17,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:17,842 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:17,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:44:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:20,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:20,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:21,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:21,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:21,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:21,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875441188] [2021-11-12 22:44:21,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875441188] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:21,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:21,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:21,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402151428] [2021-11-12 22:44:21,379 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:21,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:21,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:21,381 INFO L87 Difference]: Start difference. First operand 2241 states and 3075 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:44:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:21,544 INFO L93 Difference]: Finished difference Result 2241 states and 3075 transitions. [2021-11-12 22:44:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:21,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 105 [2021-11-12 22:44:21,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:21,558 INFO L225 Difference]: With dead ends: 2241 [2021-11-12 22:44:21,558 INFO L226 Difference]: Without dead ends: 2239 [2021-11-12 22:44:21,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:21,561 INFO L933 BasicCegarLoop]: 2944 mSDtfsCounter, 2851 mSDsluCounter, 5884 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 8828 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.85ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:21,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2853 Valid, 8828 Invalid, 2 Unknown, 0 Unchecked, 11.06ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.85ms Time] [2021-11-12 22:44:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2021-11-12 22:44:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2239. [2021-11-12 22:44:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 1516 states have (on average 1.2836411609498681) internal successors, (1946), 1594 states have internal predecessors, (1946), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:21,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3072 transitions. [2021-11-12 22:44:21,765 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3072 transitions. Word has length 105 [2021-11-12 22:44:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:21,765 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 3072 transitions. [2021-11-12 22:44:21,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:44:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3072 transitions. [2021-11-12 22:44:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-12 22:44:21,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:21,768 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:21,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:21,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:21,989 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:21,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1257847071, now seen corresponding path program 1 times [2021-11-12 22:44:21,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:21,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934359461] [2021-11-12 22:44:21,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:21,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:21,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:21,992 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:21,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 22:44:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:24,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:24,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:44:24,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:44:25,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:25,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934359461] [2021-11-12 22:44:25,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934359461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:25,116 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:25,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:44:25,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221826631] [2021-11-12 22:44:25,117 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:25,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:44:25,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:25,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:44:25,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:25,118 INFO L87 Difference]: Start difference. First operand 2239 states and 3072 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 22:44:25,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:25,501 INFO L93 Difference]: Finished difference Result 4437 states and 6088 transitions. [2021-11-12 22:44:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:44:25,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 118 [2021-11-12 22:44:25,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:25,512 INFO L225 Difference]: With dead ends: 4437 [2021-11-12 22:44:25,513 INFO L226 Difference]: Without dead ends: 2235 [2021-11-12 22:44:25,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:25,522 INFO L933 BasicCegarLoop]: 2940 mSDtfsCounter, 2924 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.38ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 194.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:25,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 2940 Invalid, 8 Unknown, 0 Unchecked, 4.38ms Time], IncrementalHoareTripleChecker [7 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 194.30ms Time] [2021-11-12 22:44:25,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2021-11-12 22:44:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2021-11-12 22:44:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1513 states have (on average 1.2828816920026438) internal successors, (1941), 1590 states have internal predecessors, (1941), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3067 transitions. [2021-11-12 22:44:25,725 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3067 transitions. Word has length 118 [2021-11-12 22:44:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:25,726 INFO L470 AbstractCegarLoop]: Abstraction has 2235 states and 3067 transitions. [2021-11-12 22:44:25,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 22:44:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3067 transitions. [2021-11-12 22:44:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-12 22:44:25,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:25,728 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:25,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:25,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:25,949 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:25,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:25,950 INFO L85 PathProgramCache]: Analyzing trace with hash -906403881, now seen corresponding path program 1 times [2021-11-12 22:44:25,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:25,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723583111] [2021-11-12 22:44:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:25,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:25,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:25,952 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:25,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:44:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:28,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:28,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:29,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:29,371 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:29,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723583111] [2021-11-12 22:44:29,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723583111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:29,372 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:29,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:29,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768816478] [2021-11-12 22:44:29,372 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:29,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:29,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:29,374 INFO L87 Difference]: Start difference. First operand 2235 states and 3067 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 22:44:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:29,594 INFO L93 Difference]: Finished difference Result 2235 states and 3067 transitions. [2021-11-12 22:44:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:29,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 111 [2021-11-12 22:44:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:29,601 INFO L225 Difference]: With dead ends: 2235 [2021-11-12 22:44:29,602 INFO L226 Difference]: Without dead ends: 2233 [2021-11-12 22:44:29,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:29,603 INFO L933 BasicCegarLoop]: 2937 mSDtfsCounter, 2841 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 5872 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:29,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 5872 Invalid, 2 Unknown, 0 Unchecked, 7.75ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.94ms Time] [2021-11-12 22:44:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2021-11-12 22:44:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2233. [2021-11-12 22:44:29,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1512 states have (on average 1.2817460317460319) internal successors, (1938), 1588 states have internal predecessors, (1938), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 3064 transitions. [2021-11-12 22:44:29,818 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 3064 transitions. Word has length 111 [2021-11-12 22:44:29,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:29,818 INFO L470 AbstractCegarLoop]: Abstraction has 2233 states and 3064 transitions. [2021-11-12 22:44:29,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 22:44:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 3064 transitions. [2021-11-12 22:44:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-12 22:44:29,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:29,821 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:29,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:30,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:30,045 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:30,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1776112754, now seen corresponding path program 1 times [2021-11-12 22:44:30,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:30,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372294881] [2021-11-12 22:44:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:30,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:30,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:30,049 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:30,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:44:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:32,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:32,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:44:32,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-12 22:44:33,267 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:33,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372294881] [2021-11-12 22:44:33,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372294881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:33,267 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:33,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:44:33,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670093227] [2021-11-12 22:44:33,267 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:33,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:44:33,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:44:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:33,269 INFO L87 Difference]: Start difference. First operand 2233 states and 3064 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 22:44:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:35,304 INFO L93 Difference]: Finished difference Result 4425 states and 6072 transitions. [2021-11-12 22:44:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:44:35,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 124 [2021-11-12 22:44:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:35,319 INFO L225 Difference]: With dead ends: 4425 [2021-11-12 22:44:35,319 INFO L226 Difference]: Without dead ends: 2229 [2021-11-12 22:44:35,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:35,328 INFO L933 BasicCegarLoop]: 2933 mSDtfsCounter, 4712 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1483.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4712 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.80ms SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1828.26ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:35,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4712 Valid, 2933 Invalid, 1116 Unknown, 0 Unchecked, 10.80ms Time], IncrementalHoareTripleChecker [1115 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1828.26ms Time] [2021-11-12 22:44:35,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2021-11-12 22:44:35,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2229. [2021-11-12 22:44:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1509 states have (on average 1.2809807819748178) internal successors, (1933), 1584 states have internal predecessors, (1933), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3059 transitions. [2021-11-12 22:44:35,504 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3059 transitions. Word has length 124 [2021-11-12 22:44:35,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:35,505 INFO L470 AbstractCegarLoop]: Abstraction has 2229 states and 3059 transitions. [2021-11-12 22:44:35,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 22:44:35,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3059 transitions. [2021-11-12 22:44:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 22:44:35,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:35,508 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:35,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:35,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:35,721 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash -283647224, now seen corresponding path program 1 times [2021-11-12 22:44:35,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:35,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132783093] [2021-11-12 22:44:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:35,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:35,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:35,725 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:35,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 22:44:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:38,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:38,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:38,852 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:38,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:39,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:39,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132783093] [2021-11-12 22:44:39,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132783093] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:39,299 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:39,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:39,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546667727] [2021-11-12 22:44:39,299 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:39,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:39,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:39,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:39,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:39,300 INFO L87 Difference]: Start difference. First operand 2229 states and 3059 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 22:44:39,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:39,570 INFO L93 Difference]: Finished difference Result 2229 states and 3059 transitions. [2021-11-12 22:44:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:39,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 117 [2021-11-12 22:44:39,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:39,579 INFO L225 Difference]: With dead ends: 2229 [2021-11-12 22:44:39,580 INFO L226 Difference]: Without dead ends: 2227 [2021-11-12 22:44:39,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:39,582 INFO L933 BasicCegarLoop]: 2930 mSDtfsCounter, 2825 mSDsluCounter, 5856 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 8786 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:39,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2827 Valid, 8786 Invalid, 2 Unknown, 0 Unchecked, 14.90ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.56ms Time] [2021-11-12 22:44:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-12 22:44:39,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2021-11-12 22:44:39,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1508 states have (on average 1.279840848806366) internal successors, (1930), 1582 states have internal predecessors, (1930), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3056 transitions. [2021-11-12 22:44:39,892 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3056 transitions. Word has length 117 [2021-11-12 22:44:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:39,894 INFO L470 AbstractCegarLoop]: Abstraction has 2227 states and 3056 transitions. [2021-11-12 22:44:39,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 22:44:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3056 transitions. [2021-11-12 22:44:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-12 22:44:39,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:39,896 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:39,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:40,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:40,109 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:40,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1320011400, now seen corresponding path program 1 times [2021-11-12 22:44:40,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:40,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243910130] [2021-11-12 22:44:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:40,113 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:40,114 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:40,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 22:44:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:42,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:42,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:43,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:43,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:43,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:43,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243910130] [2021-11-12 22:44:43,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243910130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:43,856 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:43,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:43,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281347297] [2021-11-12 22:44:43,856 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:43,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:43,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:43,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:43,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:43,858 INFO L87 Difference]: Start difference. First operand 2227 states and 3056 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:44:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:44,052 INFO L93 Difference]: Finished difference Result 2227 states and 3056 transitions. [2021-11-12 22:44:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:44,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 123 [2021-11-12 22:44:44,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:44,059 INFO L225 Difference]: With dead ends: 2227 [2021-11-12 22:44:44,059 INFO L226 Difference]: Without dead ends: 2225 [2021-11-12 22:44:44,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:44,061 INFO L933 BasicCegarLoop]: 2928 mSDtfsCounter, 2820 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:44,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2822 Valid, 5854 Invalid, 2 Unknown, 0 Unchecked, 8.59ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.99ms Time] [2021-11-12 22:44:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2021-11-12 22:44:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2021-11-12 22:44:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1507 states have (on average 1.278699402786994) internal successors, (1927), 1580 states have internal predecessors, (1927), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:44,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3053 transitions. [2021-11-12 22:44:44,402 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3053 transitions. Word has length 123 [2021-11-12 22:44:44,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:44,402 INFO L470 AbstractCegarLoop]: Abstraction has 2225 states and 3053 transitions. [2021-11-12 22:44:44,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:44:44,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3053 transitions. [2021-11-12 22:44:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-12 22:44:44,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:44,405 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:44,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:44,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:44,621 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:44,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:44,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2123786986, now seen corresponding path program 1 times [2021-11-12 22:44:44,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:44,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781586035] [2021-11-12 22:44:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:44,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:44,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:44,626 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:44,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 22:44:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:47,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:47,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:47,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:48,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:48,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781586035] [2021-11-12 22:44:48,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781586035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:48,286 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:48,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:48,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078641281] [2021-11-12 22:44:48,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:48,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:48,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:48,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:48,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:48,288 INFO L87 Difference]: Start difference. First operand 2225 states and 3053 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 22:44:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:48,479 INFO L93 Difference]: Finished difference Result 2225 states and 3053 transitions. [2021-11-12 22:44:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 129 [2021-11-12 22:44:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:48,488 INFO L225 Difference]: With dead ends: 2225 [2021-11-12 22:44:48,489 INFO L226 Difference]: Without dead ends: 2223 [2021-11-12 22:44:48,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:48,491 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 2809 mSDsluCounter, 5848 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 8774 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:48,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 8774 Invalid, 2 Unknown, 0 Unchecked, 10.34ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.87ms Time] [2021-11-12 22:44:48,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-12 22:44:48,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2223. [2021-11-12 22:44:48,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 1506 states have (on average 1.2775564409030544) internal successors, (1924), 1578 states have internal predecessors, (1924), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:48,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 3050 transitions. [2021-11-12 22:44:48,720 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 3050 transitions. Word has length 129 [2021-11-12 22:44:48,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:48,721 INFO L470 AbstractCegarLoop]: Abstraction has 2223 states and 3050 transitions. [2021-11-12 22:44:48,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 22:44:48,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 3050 transitions. [2021-11-12 22:44:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-12 22:44:48,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:48,723 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:48,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:48,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:48,945 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:48,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash 847759442, now seen corresponding path program 1 times [2021-11-12 22:44:48,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:48,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830140273] [2021-11-12 22:44:48,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:48,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:48,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:48,948 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:48,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 22:44:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:51,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:51,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:52,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:52,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:52,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830140273] [2021-11-12 22:44:52,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830140273] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:52,624 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:52,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:44:52,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690021333] [2021-11-12 22:44:52,625 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:52,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:44:52,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:52,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:44:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:44:52,627 INFO L87 Difference]: Start difference. First operand 2223 states and 3050 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 22:44:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:52,818 INFO L93 Difference]: Finished difference Result 2223 states and 3050 transitions. [2021-11-12 22:44:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 135 [2021-11-12 22:44:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:52,831 INFO L225 Difference]: With dead ends: 2223 [2021-11-12 22:44:52,831 INFO L226 Difference]: Without dead ends: 2221 [2021-11-12 22:44:52,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:52,833 INFO L933 BasicCegarLoop]: 2924 mSDtfsCounter, 2804 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.88ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:52,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2806 Valid, 5846 Invalid, 2 Unknown, 0 Unchecked, 7.55ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.88ms Time] [2021-11-12 22:44:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2021-11-12 22:44:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2221. [2021-11-12 22:44:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1505 states have (on average 1.2764119601328903) internal successors, (1921), 1576 states have internal predecessors, (1921), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3047 transitions. [2021-11-12 22:44:53,182 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3047 transitions. Word has length 135 [2021-11-12 22:44:53,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:53,183 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 3047 transitions. [2021-11-12 22:44:53,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 22:44:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3047 transitions. [2021-11-12 22:44:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-12 22:44:53,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:53,187 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:53,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-11-12 22:44:53,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:53,401 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1184548556, now seen corresponding path program 1 times [2021-11-12 22:44:53,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:53,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970822403] [2021-11-12 22:44:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:53,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:53,404 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:53,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 22:44:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:55,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:44:55,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:56,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:44:57,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:57,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970822403] [2021-11-12 22:44:57,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970822403] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:57,451 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:57,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 22:44:57,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924831575] [2021-11-12 22:44:57,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:57,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:44:57,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:57,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:44:57,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:44:57,452 INFO L87 Difference]: Start difference. First operand 2221 states and 3047 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:44:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:57,668 INFO L93 Difference]: Finished difference Result 2221 states and 3047 transitions. [2021-11-12 22:44:57,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:57,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 141 [2021-11-12 22:44:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:57,677 INFO L225 Difference]: With dead ends: 2221 [2021-11-12 22:44:57,677 INFO L226 Difference]: Without dead ends: 2219 [2021-11-12 22:44:57,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:44:57,679 INFO L933 BasicCegarLoop]: 2922 mSDtfsCounter, 2866 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.50ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.33ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:57,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2868 Valid, 5842 Invalid, 25 Unknown, 0 Unchecked, 7.50ms Time], IncrementalHoareTripleChecker [23 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 28.33ms Time] [2021-11-12 22:44:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2021-11-12 22:44:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2021-11-12 22:44:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1504 states have (on average 1.2752659574468086) internal successors, (1918), 1574 states have internal predecessors, (1918), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:44:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3044 transitions. [2021-11-12 22:44:57,984 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3044 transitions. Word has length 141 [2021-11-12 22:44:57,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:57,985 INFO L470 AbstractCegarLoop]: Abstraction has 2219 states and 3044 transitions. [2021-11-12 22:44:57,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:44:57,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3044 transitions. [2021-11-12 22:44:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-12 22:44:57,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:57,988 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:58,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:58,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:58,209 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:44:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2065504485, now seen corresponding path program 1 times [2021-11-12 22:44:58,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:58,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548980441] [2021-11-12 22:44:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:58,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:58,212 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:58,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 22:45:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:00,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:00,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:01,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:02,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:02,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548980441] [2021-11-12 22:45:02,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548980441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:02,005 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:02,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:45:02,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312617587] [2021-11-12 22:45:02,005 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:02,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:45:02,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:02,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:45:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:45:02,007 INFO L87 Difference]: Start difference. First operand 2219 states and 3044 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-12 22:45:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:02,229 INFO L93 Difference]: Finished difference Result 2219 states and 3044 transitions. [2021-11-12 22:45:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 147 [2021-11-12 22:45:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:02,236 INFO L225 Difference]: With dead ends: 2219 [2021-11-12 22:45:02,236 INFO L226 Difference]: Without dead ends: 2217 [2021-11-12 22:45:02,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:45:02,238 INFO L933 BasicCegarLoop]: 2920 mSDtfsCounter, 2785 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 8756 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.71ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:02,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2787 Valid, 8756 Invalid, 2 Unknown, 0 Unchecked, 10.69ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.71ms Time] [2021-11-12 22:45:02,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2021-11-12 22:45:02,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2217. [2021-11-12 22:45:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2217 states, 1503 states have (on average 1.2741184298070525) internal successors, (1915), 1572 states have internal predecessors, (1915), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-12 22:45:02,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 3041 transitions. [2021-11-12 22:45:02,458 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 3041 transitions. Word has length 147 [2021-11-12 22:45:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:02,459 INFO L470 AbstractCegarLoop]: Abstraction has 2217 states and 3041 transitions. [2021-11-12 22:45:02,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-12 22:45:02,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 3041 transitions. [2021-11-12 22:45:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-12 22:45:02,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:02,461 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:02,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:02,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:02,662 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1261180084, now seen corresponding path program 1 times [2021-11-12 22:45:02,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:02,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332675241] [2021-11-12 22:45:02,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:02,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:02,665 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:02,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:45:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:05,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:45:05,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 22:45:06,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-11-12 22:45:07,631 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:07,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332675241] [2021-11-12 22:45:07,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332675241] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:45:07,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [997422027] [2021-11-12 22:45:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:07,632 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:07,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:45:07,654 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:45:07,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-11-12 22:45:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:11,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:45:11,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:45:12,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:45:13,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [997422027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:13,545 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:45:13,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [17, 17] total 25 [2021-11-12 22:45:13,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94537432] [2021-11-12 22:45:13,546 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:13,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:45:13,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:13,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:45:13,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:45:13,547 INFO L87 Difference]: Start difference. First operand 2217 states and 3041 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-12 22:45:14,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:14,070 INFO L93 Difference]: Finished difference Result 2702 states and 3707 transitions. [2021-11-12 22:45:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:45:14,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 193 [2021-11-12 22:45:14,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:14,079 INFO L225 Difference]: With dead ends: 2702 [2021-11-12 22:45:14,079 INFO L226 Difference]: Without dead ends: 2700 [2021-11-12 22:45:14,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-12 22:45:14,080 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 2235 mSDsluCounter, 13713 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 16839 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.17ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:14,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2238 Valid, 16839 Invalid, 24 Unknown, 0 Unchecked, 17.17ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 51.17ms Time] [2021-11-12 22:45:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2021-11-12 22:45:14,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2690. [2021-11-12 22:45:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1791 states have (on average 1.2668900055834729) internal successors, (2269), 1897 states have internal predecessors, (2269), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-12 22:45:14,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3699 transitions. [2021-11-12 22:45:14,386 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3699 transitions. Word has length 193 [2021-11-12 22:45:14,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:14,387 INFO L470 AbstractCegarLoop]: Abstraction has 2690 states and 3699 transitions. [2021-11-12 22:45:14,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-12 22:45:14,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3699 transitions. [2021-11-12 22:45:14,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-12 22:45:14,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:14,389 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:14,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:14,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:14,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:14,790 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:14,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1212186328, now seen corresponding path program 1 times [2021-11-12 22:45:14,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:14,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849411744] [2021-11-12 22:45:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:14,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:14,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:14,793 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:14,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 22:45:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:17,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:17,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:18,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:18,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:18,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849411744] [2021-11-12 22:45:18,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849411744] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:18,613 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:18,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:45:18,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708570791] [2021-11-12 22:45:18,613 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:18,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:45:18,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:18,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:45:18,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:45:18,615 INFO L87 Difference]: Start difference. First operand 2690 states and 3699 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-12 22:45:18,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:18,852 INFO L93 Difference]: Finished difference Result 2690 states and 3699 transitions. [2021-11-12 22:45:18,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:18,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 153 [2021-11-12 22:45:18,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:18,863 INFO L225 Difference]: With dead ends: 2690 [2021-11-12 22:45:18,863 INFO L226 Difference]: Without dead ends: 2688 [2021-11-12 22:45:18,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:45:18,866 INFO L933 BasicCegarLoop]: 2918 mSDtfsCounter, 2780 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.83ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:18,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 5834 Invalid, 2 Unknown, 0 Unchecked, 7.40ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.83ms Time] [2021-11-12 22:45:18,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2021-11-12 22:45:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 2688. [2021-11-12 22:45:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 1790 states have (on average 1.2659217877094973) internal successors, (2266), 1895 states have internal predecessors, (2266), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-12 22:45:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3696 transitions. [2021-11-12 22:45:19,256 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3696 transitions. Word has length 153 [2021-11-12 22:45:19,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:19,257 INFO L470 AbstractCegarLoop]: Abstraction has 2688 states and 3696 transitions. [2021-11-12 22:45:19,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-12 22:45:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3696 transitions. [2021-11-12 22:45:19,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-12 22:45:19,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:19,260 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:19,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:19,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:19,481 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:19,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:19,482 INFO L85 PathProgramCache]: Analyzing trace with hash 903145121, now seen corresponding path program 1 times [2021-11-12 22:45:19,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:19,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936660366] [2021-11-12 22:45:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:19,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:19,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:19,484 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:19,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 22:45:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:21,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:21,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:22,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:23,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:23,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936660366] [2021-11-12 22:45:23,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936660366] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:23,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:23,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:45:23,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340412875] [2021-11-12 22:45:23,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:23,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:45:23,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:45:23,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:45:23,319 INFO L87 Difference]: Start difference. First operand 2688 states and 3696 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:23,629 INFO L93 Difference]: Finished difference Result 2688 states and 3696 transitions. [2021-11-12 22:45:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:23,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 159 [2021-11-12 22:45:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:23,639 INFO L225 Difference]: With dead ends: 2688 [2021-11-12 22:45:23,639 INFO L226 Difference]: Without dead ends: 2686 [2021-11-12 22:45:23,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:45:23,641 INFO L933 BasicCegarLoop]: 2916 mSDtfsCounter, 2769 mSDsluCounter, 5828 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 8744 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.14ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:23,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2771 Valid, 8744 Invalid, 2 Unknown, 0 Unchecked, 11.55ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.14ms Time] [2021-11-12 22:45:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-11-12 22:45:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2021-11-12 22:45:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 1789 states have (on average 1.2649524874231415) internal successors, (2263), 1893 states have internal predecessors, (2263), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-12 22:45:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 3693 transitions. [2021-11-12 22:45:23,961 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 3693 transitions. Word has length 159 [2021-11-12 22:45:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:23,962 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 3693 transitions. [2021-11-12 22:45:23,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:45:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 3693 transitions. [2021-11-12 22:45:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-12 22:45:23,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:23,964 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:23,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:24,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:24,165 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:24,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1741248427, now seen corresponding path program 1 times [2021-11-12 22:45:24,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:24,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273076342] [2021-11-12 22:45:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:24,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:24,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:24,169 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:24,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 22:45:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:26,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:26,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:27,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:28,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:28,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273076342] [2021-11-12 22:45:28,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273076342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:28,189 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:28,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:45:28,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820282351] [2021-11-12 22:45:28,190 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:28,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:45:28,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:45:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:45:28,192 INFO L87 Difference]: Start difference. First operand 2686 states and 3693 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:45:28,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:28,488 INFO L93 Difference]: Finished difference Result 2686 states and 3693 transitions. [2021-11-12 22:45:28,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:28,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 165 [2021-11-12 22:45:28,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:28,496 INFO L225 Difference]: With dead ends: 2686 [2021-11-12 22:45:28,496 INFO L226 Difference]: Without dead ends: 2684 [2021-11-12 22:45:28,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:45:28,498 INFO L933 BasicCegarLoop]: 2914 mSDtfsCounter, 2761 mSDsluCounter, 5824 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 8738 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.91ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:28,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2763 Valid, 8738 Invalid, 2 Unknown, 0 Unchecked, 10.39ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.91ms Time] [2021-11-12 22:45:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2021-11-12 22:45:28,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2684. [2021-11-12 22:45:28,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 1788 states have (on average 1.2639821029082774) internal successors, (2260), 1891 states have internal predecessors, (2260), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-12 22:45:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3690 transitions. [2021-11-12 22:45:28,776 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3690 transitions. Word has length 165 [2021-11-12 22:45:28,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:28,776 INFO L470 AbstractCegarLoop]: Abstraction has 2684 states and 3690 transitions. [2021-11-12 22:45:28,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:45:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3690 transitions. [2021-11-12 22:45:28,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-12 22:45:28,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:28,780 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:28,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:29,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:29,002 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:29,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:29,002 INFO L85 PathProgramCache]: Analyzing trace with hash 565245805, now seen corresponding path program 1 times [2021-11-12 22:45:29,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:29,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087777386] [2021-11-12 22:45:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:29,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:29,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:29,005 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:29,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-12 22:45:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:31,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:31,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:32,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:32,964 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:32,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087777386] [2021-11-12 22:45:32,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087777386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:32,964 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:32,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:45:32,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304353461] [2021-11-12 22:45:32,964 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:32,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:45:32,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:32,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:45:32,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:45:32,965 INFO L87 Difference]: Start difference. First operand 2684 states and 3690 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 22:45:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:33,256 INFO L93 Difference]: Finished difference Result 2684 states and 3690 transitions. [2021-11-12 22:45:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 171 [2021-11-12 22:45:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:33,262 INFO L225 Difference]: With dead ends: 2684 [2021-11-12 22:45:33,262 INFO L226 Difference]: Without dead ends: 2682 [2021-11-12 22:45:33,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:45:33,264 INFO L933 BasicCegarLoop]: 2912 mSDtfsCounter, 2753 mSDsluCounter, 5820 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:33,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2755 Valid, 8732 Invalid, 2 Unknown, 0 Unchecked, 10.29ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.75ms Time] [2021-11-12 22:45:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2021-11-12 22:45:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2021-11-12 22:45:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 1787 states have (on average 1.263010632344712) internal successors, (2257), 1889 states have internal predecessors, (2257), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-12 22:45:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3687 transitions. [2021-11-12 22:45:33,573 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3687 transitions. Word has length 171 [2021-11-12 22:45:33,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:33,574 INFO L470 AbstractCegarLoop]: Abstraction has 2682 states and 3687 transitions. [2021-11-12 22:45:33,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 22:45:33,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3687 transitions. [2021-11-12 22:45:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-12 22:45:33,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:33,579 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:33,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:33,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:33,793 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:33,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:33,794 INFO L85 PathProgramCache]: Analyzing trace with hash -769721255, now seen corresponding path program 1 times [2021-11-12 22:45:33,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:33,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95154851] [2021-11-12 22:45:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:33,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:33,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:33,798 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:33,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-12 22:45:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:36,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:45:36,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-12 22:45:37,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-12 22:45:38,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:38,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95154851] [2021-11-12 22:45:38,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95154851] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:45:38,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [997556614] [2021-11-12 22:45:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:38,915 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:38,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:45:38,916 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:45:38,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2021-11-12 22:45:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:42,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 22:45:42,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2021-11-12 22:45:43,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-12 22:45:45,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [997556614] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:45,454 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:45:45,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [17, 17] total 34 [2021-11-12 22:45:45,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564185998] [2021-11-12 22:45:45,455 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:45,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:45:45,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:45:45,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1046, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 22:45:45,456 INFO L87 Difference]: Start difference. First operand 2682 states and 3687 transitions. Second operand has 23 states, 21 states have (on average 4.666666666666667) internal successors, (98), 19 states have internal predecessors, (98), 8 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (35), 10 states have call predecessors, (35), 8 states have call successors, (35) [2021-11-12 22:45:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:50,010 INFO L93 Difference]: Finished difference Result 5043 states and 6988 transitions. [2021-11-12 22:45:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-12 22:45:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 4.666666666666667) internal successors, (98), 19 states have internal predecessors, (98), 8 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (35), 10 states have call predecessors, (35), 8 states have call successors, (35) Word has length 224 [2021-11-12 22:45:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:50,023 INFO L225 Difference]: With dead ends: 5043 [2021-11-12 22:45:50,023 INFO L226 Difference]: Without dead ends: 2952 [2021-11-12 22:45:50,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 864 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2021-11-12 22:45:50,034 INFO L933 BasicCegarLoop]: 3181 mSDtfsCounter, 449 mSDsluCounter, 46641 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1918.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 49822 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.39ms SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2087.12ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:50,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 49822 Invalid, 1065 Unknown, 0 Unchecked, 61.39ms Time], IncrementalHoareTripleChecker [342 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 2087.12ms Time] [2021-11-12 22:45:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-12 22:45:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2692. [2021-11-12 22:45:50,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 1794 states have (on average 1.261984392419175) internal successors, (2264), 1896 states have internal predecessors, (2264), 693 states have call successors, (693), 199 states have call predecessors, (693), 198 states have return successors, (743), 632 states have call predecessors, (743), 691 states have call successors, (743) [2021-11-12 22:45:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3700 transitions. [2021-11-12 22:45:50,429 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3700 transitions. Word has length 224 [2021-11-12 22:45:50,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:50,429 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3700 transitions. [2021-11-12 22:45:50,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 4.666666666666667) internal successors, (98), 19 states have internal predecessors, (98), 8 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (35), 10 states have call predecessors, (35), 8 states have call successors, (35) [2021-11-12 22:45:50,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3700 transitions. [2021-11-12 22:45:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-12 22:45:50,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:50,433 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:50,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:50,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:50,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:45:50,858 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:50,858 INFO L85 PathProgramCache]: Analyzing trace with hash -307449643, now seen corresponding path program 1 times [2021-11-12 22:45:50,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:50,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413891639] [2021-11-12 22:45:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:50,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:50,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:50,861 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:50,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-12 22:45:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:53,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:53,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:54,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:54,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 22:45:54,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:54,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413891639] [2021-11-12 22:45:54,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413891639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:54,849 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:54,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:45:54,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159686565] [2021-11-12 22:45:54,850 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:54,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:45:54,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:45:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:45:54,851 INFO L87 Difference]: Start difference. First operand 2692 states and 3700 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-12 22:45:55,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:55,150 INFO L93 Difference]: Finished difference Result 2692 states and 3700 transitions. [2021-11-12 22:45:55,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:55,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 177 [2021-11-12 22:45:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:55,158 INFO L225 Difference]: With dead ends: 2692 [2021-11-12 22:45:55,158 INFO L226 Difference]: Without dead ends: 2376 [2021-11-12 22:45:55,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:45:55,160 INFO L933 BasicCegarLoop]: 2911 mSDtfsCounter, 2744 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:55,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2744 Valid, 5822 Invalid, 1 Unknown, 0 Unchecked, 7.91ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.40ms Time] [2021-11-12 22:45:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2021-11-12 22:45:55,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2376. [2021-11-12 22:45:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 1575 states have (on average 1.2926984126984127) internal successors, (2036), 1674 states have internal predecessors, (2036), 638 states have call successors, (638), 157 states have call predecessors, (638), 157 states have return successors, (690), 579 states have call predecessors, (690), 638 states have call successors, (690) [2021-11-12 22:45:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3364 transitions. [2021-11-12 22:45:55,411 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3364 transitions. Word has length 177 [2021-11-12 22:45:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 2376 states and 3364 transitions. [2021-11-12 22:45:55,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-12 22:45:55,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3364 transitions. [2021-11-12 22:45:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-12 22:45:55,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:55,416 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:45:55,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:55,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:55,638 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:45:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1086076658, now seen corresponding path program 1 times [2021-11-12 22:45:55,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:55,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551385145] [2021-11-12 22:45:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:55,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:55,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:55,641 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:55,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-12 22:45:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:58,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 22:45:58,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-12 22:45:59,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-11-12 22:46:00,429 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:00,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551385145] [2021-11-12 22:46:00,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551385145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:00,429 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:46:00,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 18 [2021-11-12 22:46:00,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845521224] [2021-11-12 22:46:00,429 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:00,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 22:46:00,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:00,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 22:46:00,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:46:00,430 INFO L87 Difference]: Start difference. First operand 2376 states and 3364 transitions. Second operand has 18 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 7 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) [2021-11-12 22:46:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:04,419 INFO L93 Difference]: Finished difference Result 5837 states and 8420 transitions. [2021-11-12 22:46:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-12 22:46:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 7 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) Word has length 209 [2021-11-12 22:46:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:04,431 INFO L225 Difference]: With dead ends: 5837 [2021-11-12 22:46:04,431 INFO L226 Difference]: Without dead ends: 3485 [2021-11-12 22:46:04,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2021-11-12 22:46:04,441 INFO L933 BasicCegarLoop]: 4311 mSDtfsCounter, 3169 mSDsluCounter, 59847 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 1016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2280.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 64158 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.08ms SdHoareTripleChecker+Time, 1016 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2515.12ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:04,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3331 Valid, 64158 Invalid, 1726 Unknown, 0 Unchecked, 83.08ms Time], IncrementalHoareTripleChecker [1016 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 2515.12ms Time] [2021-11-12 22:46:04,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2021-11-12 22:46:04,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 2393. [2021-11-12 22:46:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 1587 states have (on average 1.2904851921865155) internal successors, (2048), 1686 states have internal predecessors, (2048), 642 states have call successors, (642), 157 states have call predecessors, (642), 158 states have return successors, (696), 584 states have call predecessors, (696), 642 states have call successors, (696) [2021-11-12 22:46:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3386 transitions. [2021-11-12 22:46:04,846 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3386 transitions. Word has length 209 [2021-11-12 22:46:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:04,847 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 3386 transitions. [2021-11-12 22:46:04,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 7 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) [2021-11-12 22:46:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3386 transitions. [2021-11-12 22:46:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-12 22:46:04,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:04,849 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:04,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:05,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:05,074 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:46:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2058953978, now seen corresponding path program 1 times [2021-11-12 22:46:05,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:05,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836068525] [2021-11-12 22:46:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:05,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:05,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:05,078 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:05,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-12 22:46:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:07,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:46:07,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-11-12 22:46:09,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-12 22:46:10,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:10,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836068525] [2021-11-12 22:46:10,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836068525] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:10,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1405754156] [2021-11-12 22:46:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:10,574 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:10,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:46:10,575 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:46:10,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-11-12 22:46:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:12,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:46:12,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-12 22:46:12,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:13,036 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-12 22:46:13,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1405754156] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:13,037 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:46:13,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [17, 17] total 22 [2021-11-12 22:46:13,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307960359] [2021-11-12 22:46:13,037 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:13,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:46:13,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:13,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:46:13,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:46:13,038 INFO L87 Difference]: Start difference. First operand 2393 states and 3386 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-12 22:46:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:13,506 INFO L93 Difference]: Finished difference Result 4777 states and 6785 transitions. [2021-11-12 22:46:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:46:13,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 233 [2021-11-12 22:46:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:13,516 INFO L225 Difference]: With dead ends: 4777 [2021-11-12 22:46:13,516 INFO L226 Difference]: Without dead ends: 2409 [2021-11-12 22:46:13,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 908 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:46:13,524 INFO L933 BasicCegarLoop]: 2687 mSDtfsCounter, 15 mSDsluCounter, 5330 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.91ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.65ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:13,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 8017 Invalid, 49 Unknown, 0 Unchecked, 7.91ms Time], IncrementalHoareTripleChecker [38 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 131.65ms Time] [2021-11-12 22:46:13,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-12 22:46:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2395. [2021-11-12 22:46:13,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 1589 states have (on average 1.290119572057898) internal successors, (2050), 1688 states have internal predecessors, (2050), 642 states have call successors, (642), 157 states have call predecessors, (642), 158 states have return successors, (696), 584 states have call predecessors, (696), 642 states have call successors, (696) [2021-11-12 22:46:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3388 transitions. [2021-11-12 22:46:13,942 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3388 transitions. Word has length 233 [2021-11-12 22:46:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:13,942 INFO L470 AbstractCegarLoop]: Abstraction has 2395 states and 3388 transitions. [2021-11-12 22:46:13,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-12 22:46:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3388 transitions. [2021-11-12 22:46:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-12 22:46:13,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:13,945 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:13,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-11-12 22:46:14,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2021-11-12 22:46:14,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:14,345 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:46:14,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:14,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1626073528, now seen corresponding path program 1 times [2021-11-12 22:46:14,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:14,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075473893] [2021-11-12 22:46:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:14,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:14,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:14,349 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:14,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-12 22:46:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:17,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:46:17,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 22:46:18,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-12 22:46:19,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:19,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075473893] [2021-11-12 22:46:19,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075473893] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:19,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [297254862] [2021-11-12 22:46:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:19,625 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:19,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:46:19,626 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:46:19,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2021-11-12 22:46:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:21,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:46:21,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-12 22:46:22,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-12 22:46:22,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [297254862] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:22,804 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:46:22,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-12 22:46:22,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652874050] [2021-11-12 22:46:22,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:22,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:46:22,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:46:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2021-11-12 22:46:22,807 INFO L87 Difference]: Start difference. First operand 2395 states and 3388 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-12 22:46:24,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:46:26,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:26,275 INFO L93 Difference]: Finished difference Result 2411 states and 3399 transitions. [2021-11-12 22:46:26,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:46:26,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 243 [2021-11-12 22:46:26,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:26,283 INFO L225 Difference]: With dead ends: 2411 [2021-11-12 22:46:26,283 INFO L226 Difference]: Without dead ends: 2409 [2021-11-12 22:46:26,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2021-11-12 22:46:26,285 INFO L933 BasicCegarLoop]: 3267 mSDtfsCounter, 1991 mSDsluCounter, 15150 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2737.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 18417 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.76ms SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2917.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:26,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 18417 Invalid, 454 Unknown, 0 Unchecked, 21.76ms Time], IncrementalHoareTripleChecker [421 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2917.17ms Time] [2021-11-12 22:46:26,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-12 22:46:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2399. [2021-11-12 22:46:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 1592 states have (on average 1.289572864321608) internal successors, (2053), 1691 states have internal predecessors, (2053), 642 states have call successors, (642), 158 states have call predecessors, (642), 159 states have return successors, (696), 584 states have call predecessors, (696), 642 states have call successors, (696) [2021-11-12 22:46:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3391 transitions. [2021-11-12 22:46:26,604 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3391 transitions. Word has length 243 [2021-11-12 22:46:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:26,604 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3391 transitions. [2021-11-12 22:46:26,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-12 22:46:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3391 transitions. [2021-11-12 22:46:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-12 22:46:26,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:26,607 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:26,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:26,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:27,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:27,009 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:46:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1399201342, now seen corresponding path program 1 times [2021-11-12 22:46:27,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:27,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218648441] [2021-11-12 22:46:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:27,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:27,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:27,013 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:27,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-12 22:46:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:29,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:46:29,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-12 22:46:31,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-12 22:46:33,003 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:33,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218648441] [2021-11-12 22:46:33,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218648441] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:46:33,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1616402260] [2021-11-12 22:46:33,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:33,004 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:33,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:46:33,005 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:46:33,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2021-11-12 22:46:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:37,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:46:37,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-11-12 22:46:39,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-12 22:46:40,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1616402260] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:40,057 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:46:40,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [17, 17] total 29 [2021-11-12 22:46:40,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271726026] [2021-11-12 22:46:40,057 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:40,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 22:46:40,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:40,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 22:46:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=753, Unknown=0, NotChecked=0, Total=812 [2021-11-12 22:46:40,060 INFO L87 Difference]: Start difference. First operand 2399 states and 3391 transitions. Second operand has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 16 states have internal predecessors, (128), 7 states have call successors, (46), 2 states have call predecessors, (46), 6 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) [2021-11-12 22:46:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:42,941 INFO L93 Difference]: Finished difference Result 4365 states and 6182 transitions. [2021-11-12 22:46:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 22:46:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 16 states have internal predecessors, (128), 7 states have call successors, (46), 2 states have call predecessors, (46), 6 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) Word has length 297 [2021-11-12 22:46:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:42,951 INFO L225 Difference]: With dead ends: 4365 [2021-11-12 22:46:42,951 INFO L226 Difference]: Without dead ends: 2444 [2021-11-12 22:46:42,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1159 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=129, Invalid=1511, Unknown=0, NotChecked=0, Total=1640 [2021-11-12 22:46:42,960 INFO L933 BasicCegarLoop]: 2674 mSDtfsCounter, 41 mSDsluCounter, 39963 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1391.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 42637 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.97ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1507.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:42,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 42637 Invalid, 634 Unknown, 0 Unchecked, 41.97ms Time], IncrementalHoareTripleChecker [73 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1507.87ms Time] [2021-11-12 22:46:42,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2021-11-12 22:46:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2403. [2021-11-12 22:46:43,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 1594 states have (on average 1.2892095357590967) internal successors, (2055), 1693 states have internal predecessors, (2055), 644 states have call successors, (644), 158 states have call predecessors, (644), 159 states have return successors, (698), 586 states have call predecessors, (698), 644 states have call successors, (698) [2021-11-12 22:46:43,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 3397 transitions. [2021-11-12 22:46:43,267 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 3397 transitions. Word has length 297 [2021-11-12 22:46:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:43,267 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 3397 transitions. [2021-11-12 22:46:43,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 16 states have internal predecessors, (128), 7 states have call successors, (46), 2 states have call predecessors, (46), 6 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) [2021-11-12 22:46:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 3397 transitions. [2021-11-12 22:46:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-12 22:46:43,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:43,269 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:43,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:43,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:43,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:46:43,670 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:46:43,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:43,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1975491392, now seen corresponding path program 1 times [2021-11-12 22:46:43,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:43,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719142427] [2021-11-12 22:46:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:43,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:43,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:43,673 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:43,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-12 22:46:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:46,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2011 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:46:46,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-11-12 22:46:47,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-11-12 22:46:48,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:48,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719142427] [2021-11-12 22:46:48,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719142427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:48,470 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:46:48,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-12 22:46:48,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090871216] [2021-11-12 22:46:48,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:48,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:46:48,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:48,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:46:48,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:46:48,472 INFO L87 Difference]: Start difference. First operand 2403 states and 3397 transitions. Second operand has 10 states, 10 states have (on average 18.7) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (61), 4 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-12 22:46:49,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:49,021 INFO L93 Difference]: Finished difference Result 4792 states and 6799 transitions. [2021-11-12 22:46:49,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:46:49,022 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.7) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (61), 4 states have call predecessors, (61), 2 states have call successors, (61) Word has length 278 [2021-11-12 22:46:49,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:49,028 INFO L225 Difference]: With dead ends: 4792 [2021-11-12 22:46:49,028 INFO L226 Difference]: Without dead ends: 2414 [2021-11-12 22:46:49,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:46:49,035 INFO L933 BasicCegarLoop]: 2684 mSDtfsCounter, 13 mSDsluCounter, 16083 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 168.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18767 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.98ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 192.81ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:49,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 18767 Invalid, 38 Unknown, 0 Unchecked, 15.98ms Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 192.81ms Time] [2021-11-12 22:46:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2021-11-12 22:46:49,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2408. [2021-11-12 22:46:49,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1598 states have (on average 1.288485607008761) internal successors, (2059), 1697 states have internal predecessors, (2059), 644 states have call successors, (644), 158 states have call predecessors, (644), 160 states have return successors, (700), 587 states have call predecessors, (700), 644 states have call successors, (700) [2021-11-12 22:46:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3403 transitions. [2021-11-12 22:46:49,499 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3403 transitions. Word has length 278 [2021-11-12 22:46:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:49,499 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3403 transitions. [2021-11-12 22:46:49,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.7) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (61), 4 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-12 22:46:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3403 transitions. [2021-11-12 22:46:49,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-12 22:46:49,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:49,503 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:49,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:49,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:49,726 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:46:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash -45583638, now seen corresponding path program 1 times [2021-11-12 22:46:49,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:49,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743431197] [2021-11-12 22:46:49,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:49,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:49,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:49,731 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:49,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-12 22:46:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:52,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:46:53,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-12 22:46:53,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-12 22:46:54,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:54,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743431197] [2021-11-12 22:46:54,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743431197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:46:54,233 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:46:54,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:46:54,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73914777] [2021-11-12 22:46:54,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:54,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:46:54,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:46:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:46:54,235 INFO L87 Difference]: Start difference. First operand 2408 states and 3403 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 4 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:46:54,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:54,925 INFO L93 Difference]: Finished difference Result 4803 states and 6813 transitions. [2021-11-12 22:46:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:46:54,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 4 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Word has length 294 [2021-11-12 22:46:54,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:54,932 INFO L225 Difference]: With dead ends: 4803 [2021-11-12 22:46:54,932 INFO L226 Difference]: Without dead ends: 2420 [2021-11-12 22:46:54,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:46:54,940 INFO L933 BasicCegarLoop]: 2683 mSDtfsCounter, 15 mSDsluCounter, 8021 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 375.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 10704 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.86ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.86ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:54,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 10704 Invalid, 35 Unknown, 0 Unchecked, 8.86ms Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 408.86ms Time] [2021-11-12 22:46:54,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2021-11-12 22:46:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2021-11-12 22:46:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1606 states have (on average 1.2870485678704857) internal successors, (2067), 1704 states have internal predecessors, (2067), 648 states have call successors, (648), 158 states have call predecessors, (648), 160 states have return successors, (704), 591 states have call predecessors, (704), 648 states have call successors, (704) [2021-11-12 22:46:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3419 transitions. [2021-11-12 22:46:55,244 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3419 transitions. Word has length 294 [2021-11-12 22:46:55,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:55,245 INFO L470 AbstractCegarLoop]: Abstraction has 2420 states and 3419 transitions. [2021-11-12 22:46:55,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 4 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:46:55,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3419 transitions. [2021-11-12 22:46:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-12 22:46:55,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:55,249 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:55,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:55,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:55,450 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:46:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:55,450 INFO L85 PathProgramCache]: Analyzing trace with hash -973045028, now seen corresponding path program 1 times [2021-11-12 22:46:55,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:55,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922487180] [2021-11-12 22:46:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:55,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:55,453 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:55,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-12 22:46:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:58,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:46:59,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-12 22:46:59,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-12 22:47:00,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:00,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922487180] [2021-11-12 22:47:00,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922487180] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:00,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2040059510] [2021-11-12 22:47:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:00,838 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:00,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:47:00,838 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:47:00,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2021-11-12 22:47:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:02,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:47:02,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-12 22:47:03,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-12 22:47:03,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2040059510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:47:03,776 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:47:03,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-12 22:47:03,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159127095] [2021-11-12 22:47:03,776 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:47:03,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:47:03,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:47:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:47:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:47:03,778 INFO L87 Difference]: Start difference. First operand 2420 states and 3419 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2021-11-12 22:47:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:47:04,188 INFO L93 Difference]: Finished difference Result 4829 states and 6994 transitions. [2021-11-12 22:47:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:47:04,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 338 [2021-11-12 22:47:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:47:04,195 INFO L225 Difference]: With dead ends: 4829 [2021-11-12 22:47:04,196 INFO L226 Difference]: Without dead ends: 2434 [2021-11-12 22:47:04,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1350 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:47:04,202 INFO L933 BasicCegarLoop]: 2679 mSDtfsCounter, 10 mSDsluCounter, 8034 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10713 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.18ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:47:04,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 10713 Invalid, 14 Unknown, 0 Unchecked, 9.18ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 62.37ms Time] [2021-11-12 22:47:04,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2021-11-12 22:47:04,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2428. [2021-11-12 22:47:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1613 states have (on average 1.2858028518288902) internal successors, (2074), 1712 states have internal predecessors, (2074), 648 states have call successors, (648), 158 states have call predecessors, (648), 161 states have return successors, (705), 591 states have call predecessors, (705), 648 states have call successors, (705) [2021-11-12 22:47:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3427 transitions. [2021-11-12 22:47:04,493 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3427 transitions. Word has length 338 [2021-11-12 22:47:04,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:47:04,494 INFO L470 AbstractCegarLoop]: Abstraction has 2428 states and 3427 transitions. [2021-11-12 22:47:04,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2021-11-12 22:47:04,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3427 transitions. [2021-11-12 22:47:04,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-12 22:47:04,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:47:04,498 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:47:04,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:04,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:04,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:47:04,916 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:47:04,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:47:04,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1994113382, now seen corresponding path program 1 times [2021-11-12 22:47:04,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:47:04,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326296242] [2021-11-12 22:47:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:04,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:47:04,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:47:04,920 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:47:04,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-12 22:47:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:08,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:47:08,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-12 22:47:09,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-12 22:47:10,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:10,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326296242] [2021-11-12 22:47:10,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326296242] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:10,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1706162278] [2021-11-12 22:47:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:10,119 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:10,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:47:10,120 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:47:10,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2021-11-12 22:47:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:12,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:47:12,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-12 22:47:12,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-12 22:47:13,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1706162278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:47:13,662 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:47:13,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [6, 6] total 20 [2021-11-12 22:47:13,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580922607] [2021-11-12 22:47:13,662 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:47:13,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:47:13,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:47:13,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:47:13,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:47:13,664 INFO L87 Difference]: Start difference. First operand 2428 states and 3427 transitions. Second operand has 12 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 6 states have call successors, (60), 8 states have call predecessors, (60), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-12 22:47:16,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:47:16,306 INFO L93 Difference]: Finished difference Result 4871 states and 7003 transitions. [2021-11-12 22:47:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:47:16,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 6 states have call successors, (60), 8 states have call predecessors, (60), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 338 [2021-11-12 22:47:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:47:16,313 INFO L225 Difference]: With dead ends: 4871 [2021-11-12 22:47:16,313 INFO L226 Difference]: Without dead ends: 2468 [2021-11-12 22:47:16,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1352 GetRequests, 1330 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:47:16,318 INFO L933 BasicCegarLoop]: 2673 mSDtfsCounter, 93 mSDsluCounter, 18645 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1918.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 21318 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.25ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2037.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:47:16,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 21318 Invalid, 279 Unknown, 0 Unchecked, 22.25ms Time], IncrementalHoareTripleChecker [41 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 2037.51ms Time] [2021-11-12 22:47:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-11-12 22:47:16,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2466. [2021-11-12 22:47:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 1649 states have (on average 1.2771376591873862) internal successors, (2106), 1743 states have internal predecessors, (2106), 647 states have call successors, (647), 162 states have call predecessors, (647), 164 states have return successors, (682), 594 states have call predecessors, (682), 647 states have call successors, (682) [2021-11-12 22:47:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3435 transitions. [2021-11-12 22:47:16,616 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3435 transitions. Word has length 338 [2021-11-12 22:47:16,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:47:16,616 INFO L470 AbstractCegarLoop]: Abstraction has 2466 states and 3435 transitions. [2021-11-12 22:47:16,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 6 states have call successors, (60), 8 states have call predecessors, (60), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-12 22:47:16,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3435 transitions. [2021-11-12 22:47:16,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-12 22:47:16,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:47:16,623 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:47:16,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:16,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:17,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:17,050 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:47:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:47:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash 898808683, now seen corresponding path program 1 times [2021-11-12 22:47:17,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:47:17,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067099968] [2021-11-12 22:47:17,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:17,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:47:17,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:47:17,054 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:47:17,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-12 22:47:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:20,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:47:20,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 241 proven. 14 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-12 22:47:21,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2021-11-12 22:47:22,786 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:22,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067099968] [2021-11-12 22:47:22,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067099968] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:22,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1148073628] [2021-11-12 22:47:22,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:22,786 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:22,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:47:22,787 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:47:22,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2021-11-12 22:47:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:26,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:47:26,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 241 proven. 14 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-12 22:47:27,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2021-11-12 22:47:28,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1148073628] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:28,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729055080] [2021-11-12 22:47:28,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:28,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:47:28,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:47:28,603 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:47:28,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-12 22:47:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:30,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:47:30,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-12 22:47:33,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-12 22:47:36,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729055080] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:47:36,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:47:36,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6, 6, 6, 7] total 20 [2021-11-12 22:47:36,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055566229] [2021-11-12 22:47:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:47:36,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:47:36,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:47:36,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:47:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:47:36,402 INFO L87 Difference]: Start difference. First operand 2466 states and 3435 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 4 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2021-11-12 22:47:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:47:41,440 INFO L93 Difference]: Finished difference Result 2898 states and 3951 transitions. [2021-11-12 22:47:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:47:41,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 4 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) Word has length 427 [2021-11-12 22:47:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:47:41,452 INFO L225 Difference]: With dead ends: 2898 [2021-11-12 22:47:41,452 INFO L226 Difference]: Without dead ends: 2896 [2021-11-12 22:47:41,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2560 GetRequests, 2538 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:47:41,455 INFO L933 BasicCegarLoop]: 2789 mSDtfsCounter, 2832 mSDsluCounter, 5893 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4073.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8682 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.84ms SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4386.12ms IncrementalHoareTripleChecker+Time [2021-11-12 22:47:41,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 8682 Invalid, 985 Unknown, 0 Unchecked, 28.84ms Time], IncrementalHoareTripleChecker [165 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 4386.12ms Time] [2021-11-12 22:47:41,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-11-12 22:47:41,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2888. [2021-11-12 22:47:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 1927 states have (on average 1.2589517384535547) internal successors, (2426), 2037 states have internal predecessors, (2426), 736 states have call successors, (736), 220 states have call predecessors, (736), 219 states have return successors, (780), 673 states have call predecessors, (780), 736 states have call successors, (780) [2021-11-12 22:47:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3942 transitions. [2021-11-12 22:47:41,981 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3942 transitions. Word has length 427 [2021-11-12 22:47:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:47:41,982 INFO L470 AbstractCegarLoop]: Abstraction has 2888 states and 3942 transitions. [2021-11-12 22:47:41,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 4 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2021-11-12 22:47:41,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3942 transitions. [2021-11-12 22:47:41,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-12 22:47:41,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:47:41,988 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:47:42,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:42,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2021-11-12 22:47:42,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2021-11-12 22:47:42,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:42,589 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:47:42,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:47:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1099488344, now seen corresponding path program 1 times [2021-11-12 22:47:42,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:47:42,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378442197] [2021-11-12 22:47:42,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:42,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:47:42,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:47:42,592 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:47:42,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-12 22:47:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:46,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:47:46,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 245 proven. 14 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2021-11-12 22:47:47,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-11-12 22:47:48,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:48,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378442197] [2021-11-12 22:47:48,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378442197] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:47:48,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1271451219] [2021-11-12 22:47:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:48,446 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:48,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:47:48,446 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:47:48,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2021-11-12 22:47:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:50,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:47:50,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-12 22:47:51,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-12 22:47:52,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1271451219] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:47:52,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:47:52,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [6, 6] total 17 [2021-11-12 22:47:52,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589084699] [2021-11-12 22:47:52,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:47:52,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:47:52,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:47:52,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:47:52,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:47:52,061 INFO L87 Difference]: Start difference. First operand 2888 states and 3942 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 7 states have internal predecessors, (204), 4 states have call successors, (68), 6 states have call predecessors, (68), 4 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-12 22:47:54,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:47:56,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:47:57,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:47:57,500 INFO L93 Difference]: Finished difference Result 2894 states and 3946 transitions. [2021-11-12 22:47:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:47:57,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 7 states have internal predecessors, (204), 4 states have call successors, (68), 6 states have call predecessors, (68), 4 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) Word has length 439 [2021-11-12 22:47:57,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:47:57,507 INFO L225 Difference]: With dead ends: 2894 [2021-11-12 22:47:57,507 INFO L226 Difference]: Without dead ends: 2892 [2021-11-12 22:47:57,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1761 GetRequests, 1738 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:47:57,508 INFO L933 BasicCegarLoop]: 2932 mSDtfsCounter, 767 mSDsluCounter, 14257 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 186 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4487.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 17189 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.74ms SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4587.18ms IncrementalHoareTripleChecker+Time [2021-11-12 22:47:57,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 17189 Invalid, 233 Unknown, 0 Unchecked, 22.74ms Time], IncrementalHoareTripleChecker [186 Valid, 45 Invalid, 2 Unknown, 0 Unchecked, 4587.18ms Time] [2021-11-12 22:47:57,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-11-12 22:47:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2888. [2021-11-12 22:47:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 1927 states have (on average 1.257913855734302) internal successors, (2424), 2037 states have internal predecessors, (2424), 736 states have call successors, (736), 220 states have call predecessors, (736), 219 states have return successors, (780), 673 states have call predecessors, (780), 736 states have call successors, (780) [2021-11-12 22:47:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3940 transitions. [2021-11-12 22:47:57,813 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3940 transitions. Word has length 439 [2021-11-12 22:47:57,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:47:57,813 INFO L470 AbstractCegarLoop]: Abstraction has 2888 states and 3940 transitions. [2021-11-12 22:47:57,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 7 states have internal predecessors, (204), 4 states have call successors, (68), 6 states have call predecessors, (68), 4 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-12 22:47:57,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3940 transitions. [2021-11-12 22:47:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-11-12 22:47:57,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:47:57,819 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:47:57,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:58,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2021-11-12 22:47:58,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:47:58,220 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:47:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:47:58,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2020953767, now seen corresponding path program 1 times [2021-11-12 22:47:58,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:47:58,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448156114] [2021-11-12 22:47:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:47:58,223 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:47:58,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:47:58,223 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:47:58,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-12 22:48:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:01,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:48:01,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 135 proven. 14 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 22:48:03,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-12 22:48:04,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:48:04,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448156114] [2021-11-12 22:48:04,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448156114] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:48:04,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2058974956] [2021-11-12 22:48:04,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:04,426 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:48:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:48:04,430 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:48:04,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-12 22:48:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:06,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:48:06,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-12 22:48:07,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-12 22:48:08,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2058974956] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:48:08,385 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:48:08,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [6, 6] total 20 [2021-11-12 22:48:08,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642263428] [2021-11-12 22:48:08,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:48:08,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:48:08,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:48:08,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:48:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:48:08,388 INFO L87 Difference]: Start difference. First operand 2888 states and 3940 transitions. Second operand has 12 states, 10 states have (on average 21.3) internal successors, (213), 8 states have internal predecessors, (213), 6 states have call successors, (75), 8 states have call predecessors, (75), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-12 22:48:11,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:48:11,199 INFO L93 Difference]: Finished difference Result 5815 states and 8062 transitions. [2021-11-12 22:48:11,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:48:11,200 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 21.3) internal successors, (213), 8 states have internal predecessors, (213), 6 states have call successors, (75), 8 states have call predecessors, (75), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 448 [2021-11-12 22:48:11,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:48:11,210 INFO L225 Difference]: With dead ends: 5815 [2021-11-12 22:48:11,211 INFO L226 Difference]: Without dead ends: 2952 [2021-11-12 22:48:11,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1793 GetRequests, 1770 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:48:11,218 INFO L933 BasicCegarLoop]: 2705 mSDtfsCounter, 77 mSDsluCounter, 21485 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1950.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 24190 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.00ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2094.84ms IncrementalHoareTripleChecker+Time [2021-11-12 22:48:11,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 24190 Invalid, 363 Unknown, 0 Unchecked, 23.00ms Time], IncrementalHoareTripleChecker [36 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 2094.84ms Time] [2021-11-12 22:48:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-12 22:48:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2939. [2021-11-12 22:48:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 1972 states have (on average 1.2489858012170385) internal successors, (2463), 2079 states have internal predecessors, (2463), 739 states have call successors, (739), 222 states have call predecessors, (739), 222 states have return successors, (793), 685 states have call predecessors, (793), 739 states have call successors, (793) [2021-11-12 22:48:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 3995 transitions. [2021-11-12 22:48:11,623 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 3995 transitions. Word has length 448 [2021-11-12 22:48:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:48:11,623 INFO L470 AbstractCegarLoop]: Abstraction has 2939 states and 3995 transitions. [2021-11-12 22:48:11,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 21.3) internal successors, (213), 8 states have internal predecessors, (213), 6 states have call successors, (75), 8 states have call predecessors, (75), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-12 22:48:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 3995 transitions. [2021-11-12 22:48:11,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-12 22:48:11,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:48:11,631 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:48:11,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-12 22:48:11,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2021-11-12 22:48:12,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:48:12,041 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:48:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:48:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash -516283800, now seen corresponding path program 1 times [2021-11-12 22:48:12,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:48:12,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913338374] [2021-11-12 22:48:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:12,045 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:48:12,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:48:12,046 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:48:12,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-12 22:48:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:15,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:48:15,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-12 22:48:17,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2021-11-12 22:48:18,808 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:48:18,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913338374] [2021-11-12 22:48:18,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913338374] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:48:18,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [75919053] [2021-11-12 22:48:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:18,809 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:48:18,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:48:18,810 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:48:18,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2021-11-12 22:48:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:20,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:48:20,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-12 22:48:21,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2021-11-12 22:48:22,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [75919053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:48:22,714 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:48:22,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 21 [2021-11-12 22:48:22,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178192930] [2021-11-12 22:48:22,715 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:48:22,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:48:22,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:48:22,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:48:22,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:48:22,717 INFO L87 Difference]: Start difference. First operand 2939 states and 3995 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2021-11-12 22:48:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:48:23,178 INFO L93 Difference]: Finished difference Result 5854 states and 7983 transitions. [2021-11-12 22:48:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:48:23,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 471 [2021-11-12 22:48:23,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:48:23,184 INFO L225 Difference]: With dead ends: 5854 [2021-11-12 22:48:23,184 INFO L226 Difference]: Without dead ends: 2940 [2021-11-12 22:48:23,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1880 GetRequests, 1861 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:48:23,189 INFO L933 BasicCegarLoop]: 2681 mSDtfsCounter, 0 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.32ms IncrementalHoareTripleChecker+Time [2021-11-12 22:48:23,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5357 Invalid, 6 Unknown, 0 Unchecked, 5.69ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 59.32ms Time] [2021-11-12 22:48:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-11-12 22:48:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2021-11-12 22:48:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 1973 states have (on average 1.2488596046629499) internal successors, (2464), 2080 states have internal predecessors, (2464), 739 states have call successors, (739), 222 states have call predecessors, (739), 222 states have return successors, (793), 685 states have call predecessors, (793), 739 states have call successors, (793) [2021-11-12 22:48:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3996 transitions. [2021-11-12 22:48:23,506 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3996 transitions. Word has length 471 [2021-11-12 22:48:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:48:23,506 INFO L470 AbstractCegarLoop]: Abstraction has 2940 states and 3996 transitions. [2021-11-12 22:48:23,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2021-11-12 22:48:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3996 transitions. [2021-11-12 22:48:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-12 22:48:23,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:48:23,516 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:48:23,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2021-11-12 22:48:23,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-12 22:48:23,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:48:23,916 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:48:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:48:23,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1378050086, now seen corresponding path program 1 times [2021-11-12 22:48:23,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:48:23,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299054169] [2021-11-12 22:48:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:23,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:48:23,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:48:23,920 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:48:23,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-12 22:48:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:27,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:48:27,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-12 22:48:29,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2021-11-12 22:48:30,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:48:30,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299054169] [2021-11-12 22:48:30,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299054169] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:48:30,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [685670227] [2021-11-12 22:48:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:30,772 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:48:30,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:48:30,772 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:48:30,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2021-11-12 22:48:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:32,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:48:32,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2021-11-12 22:48:33,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2021-11-12 22:48:34,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [685670227] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:48:34,531 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:48:34,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [17, 17] total 22 [2021-11-12 22:48:34,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954263266] [2021-11-12 22:48:34,532 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:48:34,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:48:34,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:48:34,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:48:34,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:48:34,534 INFO L87 Difference]: Start difference. First operand 2940 states and 3996 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2021-11-12 22:48:35,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:48:35,541 INFO L93 Difference]: Finished difference Result 5877 states and 8014 transitions. [2021-11-12 22:48:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:48:35,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 471 [2021-11-12 22:48:35,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:48:35,552 INFO L225 Difference]: With dead ends: 5877 [2021-11-12 22:48:35,552 INFO L226 Difference]: Without dead ends: 2962 [2021-11-12 22:48:35,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1881 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:48:35,560 INFO L933 BasicCegarLoop]: 2700 mSDtfsCounter, 15 mSDsluCounter, 5282 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 531.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7982 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.05ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 577.65ms IncrementalHoareTripleChecker+Time [2021-11-12 22:48:35,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 7982 Invalid, 107 Unknown, 0 Unchecked, 8.05ms Time], IncrementalHoareTripleChecker [39 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 577.65ms Time] [2021-11-12 22:48:35,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-11-12 22:48:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2942. [2021-11-12 22:48:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 1975 states have (on average 1.2486075949367088) internal successors, (2466), 2082 states have internal predecessors, (2466), 739 states have call successors, (739), 222 states have call predecessors, (739), 222 states have return successors, (793), 685 states have call predecessors, (793), 739 states have call successors, (793) [2021-11-12 22:48:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 3998 transitions. [2021-11-12 22:48:35,954 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 3998 transitions. Word has length 471 [2021-11-12 22:48:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:48:35,955 INFO L470 AbstractCegarLoop]: Abstraction has 2942 states and 3998 transitions. [2021-11-12 22:48:35,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2021-11-12 22:48:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 3998 transitions. [2021-11-12 22:48:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-12 22:48:35,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:48:35,965 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:48:36,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-11-12 22:48:36,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2021-11-12 22:48:36,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:48:36,374 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:48:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:48:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash 969073203, now seen corresponding path program 1 times [2021-11-12 22:48:36,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:48:36,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346807676] [2021-11-12 22:48:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:36,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:48:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:48:36,377 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:48:36,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-11-12 22:48:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:39,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:48:40,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-12 22:48:41,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-12 22:48:42,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:48:42,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346807676] [2021-11-12 22:48:42,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346807676] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:48:42,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1523046827] [2021-11-12 22:48:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:48:42,449 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:48:42,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:48:42,450 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:48:42,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2021-11-12 22:48:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:48:44,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:48:44,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:48:45,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-11-12 22:48:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-12 22:48:45,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:48:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-12 22:48:46,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1523046827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:48:46,193 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:48:46,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 14 [2021-11-12 22:48:46,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441487673] [2021-11-12 22:48:46,194 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:48:46,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:48:46,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:48:46,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:48:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:48:46,195 INFO L87 Difference]: Start difference. First operand 2942 states and 3998 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-12 22:48:48,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:48:50,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:48:55,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:48:58,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:00,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:11,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:15,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:17,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:20,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:21,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:23,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:25,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:27,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:30,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:32,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:34,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:35,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:37,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:38,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:40,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:42,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:45,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:47,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:49,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:51,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:53,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:55,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:58,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:01,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:03,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:05,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:07,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:07,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:50:07,606 INFO L93 Difference]: Finished difference Result 5831 states and 8039 transitions. [2021-11-12 22:50:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:50:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 472 [2021-11-12 22:50:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:50:07,623 INFO L225 Difference]: With dead ends: 5831 [2021-11-12 22:50:07,624 INFO L226 Difference]: Without dead ends: 2914 [2021-11-12 22:50:07,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1885 GetRequests, 1872 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:50:07,630 INFO L933 BasicCegarLoop]: 2646 mSDtfsCounter, 33 mSDsluCounter, 7327 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 8 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79188.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 9973 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.54ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80966.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:50:07,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 9973 Invalid, 652 Unknown, 0 Unchecked, 15.54ms Time], IncrementalHoareTripleChecker [8 Valid, 619 Invalid, 25 Unknown, 0 Unchecked, 80966.75ms Time] [2021-11-12 22:50:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-11-12 22:50:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2914. [2021-11-12 22:50:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 1959 states have (on average 1.2475752935171005) internal successors, (2444), 2062 states have internal predecessors, (2444), 729 states have call successors, (729), 220 states have call predecessors, (729), 220 states have return successors, (781), 679 states have call predecessors, (781), 729 states have call successors, (781) [2021-11-12 22:50:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3954 transitions. [2021-11-12 22:50:07,928 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3954 transitions. Word has length 472 [2021-11-12 22:50:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:50:07,929 INFO L470 AbstractCegarLoop]: Abstraction has 2914 states and 3954 transitions. [2021-11-12 22:50:07,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-12 22:50:07,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3954 transitions. [2021-11-12 22:50:07,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-12 22:50:07,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:07,936 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:50:07,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2021-11-12 22:50:08,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2021-11-12 22:50:08,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:50:08,336 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:50:08,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:08,337 INFO L85 PathProgramCache]: Analyzing trace with hash -50691563, now seen corresponding path program 1 times [2021-11-12 22:50:08,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:50:08,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668032259] [2021-11-12 22:50:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:08,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:50:08,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:50:08,340 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:50:08,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-11-12 22:50:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:12,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:50:12,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-12 22:50:13,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:14,648 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-12 22:50:14,649 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:50:14,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668032259] [2021-11-12 22:50:14,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668032259] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:50:14,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [189098633] [2021-11-12 22:50:14,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:14,649 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:50:14,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:50:14,650 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:50:14,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2021-11-12 22:50:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:16,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:50:16,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:17,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-11-12 22:50:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-12 22:50:17,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-12 22:50:18,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [189098633] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:50:18,477 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:50:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 16 [2021-11-12 22:50:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495837424] [2021-11-12 22:50:18,478 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:50:18,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:50:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:50:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:50:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:50:18,479 INFO L87 Difference]: Start difference. First operand 2914 states and 3954 transitions. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-12 22:50:20,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:22,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:25,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:27,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:35,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:37,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:39,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:42,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:44,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:46,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:47,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:49,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:51,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:53,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:56,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:58,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:00,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:02,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:04,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:04,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:04,635 INFO L93 Difference]: Finished difference Result 5747 states and 7889 transitions. [2021-11-12 22:51:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:51:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 472 [2021-11-12 22:51:04,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:04,663 INFO L225 Difference]: With dead ends: 5747 [2021-11-12 22:51:04,663 INFO L226 Difference]: Without dead ends: 2858 [2021-11-12 22:51:04,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1885 GetRequests, 1870 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:51:04,670 INFO L933 BasicCegarLoop]: 2606 mSDtfsCounter, 24 mSDsluCounter, 4917 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 7 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44604.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 7523 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.61ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45676.21ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:04,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 7523 Invalid, 332 Unknown, 0 Unchecked, 11.61ms Time], IncrementalHoareTripleChecker [7 Valid, 309 Invalid, 16 Unknown, 0 Unchecked, 45676.21ms Time] [2021-11-12 22:51:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2021-11-12 22:51:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2858. [2021-11-12 22:51:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 1927 states have (on average 1.2444213803840165) internal successors, (2398), 2022 states have internal predecessors, (2398), 707 states have call successors, (707), 218 states have call predecessors, (707), 218 states have return successors, (755), 665 states have call predecessors, (755), 707 states have call successors, (755) [2021-11-12 22:51:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3860 transitions. [2021-11-12 22:51:04,961 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3860 transitions. Word has length 472 [2021-11-12 22:51:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:04,962 INFO L470 AbstractCegarLoop]: Abstraction has 2858 states and 3860 transitions. [2021-11-12 22:51:04,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-12 22:51:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3860 transitions. [2021-11-12 22:51:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-12 22:51:04,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:04,968 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:51:05,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2021-11-12 22:51:05,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2021-11-12 22:51:05,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:51:05,369 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:51:05,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:05,370 INFO L85 PathProgramCache]: Analyzing trace with hash 998170514, now seen corresponding path program 1 times [2021-11-12 22:51:05,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:51:05,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197476683] [2021-11-12 22:51:05,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:05,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:51:05,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:51:05,373 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:51:05,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-12 22:51:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:09,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:51:09,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-12 22:51:10,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-12 22:51:11,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:51:11,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197476683] [2021-11-12 22:51:11,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197476683] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:51:11,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1912499574] [2021-11-12 22:51:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:11,613 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:51:11,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:51:11,615 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:51:11,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2021-11-12 22:51:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:15,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:51:15,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-12 22:51:16,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-12 22:51:17,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1912499574] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:51:17,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436571864] [2021-11-12 22:51:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:17,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:17,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:17,944 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:51:17,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-12 22:51:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:19,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:51:19,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-12 22:51:23,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-12 22:51:26,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436571864] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:51:26,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:51:26,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6, 6, 6, 7] total 20 [2021-11-12 22:51:26,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648121675] [2021-11-12 22:51:26,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:26,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:51:26,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:51:26,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:51:26,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:51:26,824 INFO L87 Difference]: Start difference. First operand 2858 states and 3860 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 4 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-12 22:51:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:30,168 INFO L93 Difference]: Finished difference Result 2985 states and 3984 transitions. [2021-11-12 22:51:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:51:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 4 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) Word has length 472 [2021-11-12 22:51:30,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:30,232 INFO L225 Difference]: With dead ends: 2985 [2021-11-12 22:51:30,232 INFO L226 Difference]: Without dead ends: 2983 [2021-11-12 22:51:30,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2828 GetRequests, 2808 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:51:30,235 INFO L933 BasicCegarLoop]: 2607 mSDtfsCounter, 2260 mSDsluCounter, 6035 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2576.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 8642 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.55ms SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2844.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:30,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2282 Valid, 8642 Invalid, 815 Unknown, 0 Unchecked, 20.55ms Time], IncrementalHoareTripleChecker [156 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 2844.87ms Time] [2021-11-12 22:51:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-11-12 22:51:30,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2977. [2021-11-12 22:51:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 2007 states have (on average 1.238166417538615) internal successors, (2485), 2103 states have internal predecessors, (2485), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-12 22:51:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 3977 transitions. [2021-11-12 22:51:30,549 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 3977 transitions. Word has length 472 [2021-11-12 22:51:30,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:30,549 INFO L470 AbstractCegarLoop]: Abstraction has 2977 states and 3977 transitions. [2021-11-12 22:51:30,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 4 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-12 22:51:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 3977 transitions. [2021-11-12 22:51:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-11-12 22:51:30,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:30,557 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:51:30,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:30,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:31,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:31,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:31,158 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:51:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1102186589, now seen corresponding path program 1 times [2021-11-12 22:51:31,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:51:31,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336110896] [2021-11-12 22:51:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:31,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:51:31,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:51:31,162 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:51:31,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-11-12 22:51:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:34,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:51:34,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 279 proven. 14 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-12 22:51:36,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-12 22:51:37,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:51:37,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336110896] [2021-11-12 22:51:37,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336110896] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:51:37,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [572549032] [2021-11-12 22:51:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:37,576 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:51:37,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:51:37,577 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:51:37,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2021-11-12 22:51:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:41,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:51:41,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 279 proven. 14 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-12 22:51:42,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-12 22:51:44,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [572549032] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:51:44,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952406701] [2021-11-12 22:51:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:44,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:44,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:44,015 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:51:44,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-12 22:51:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:45,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:51:45,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 75 proven. 79 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-12 22:51:47,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2021-11-12 22:51:48,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952406701] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:51:48,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:51:48,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6, 6, 6, 6] total 16 [2021-11-12 22:51:48,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864389298] [2021-11-12 22:51:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:48,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:51:48,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:51:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:51:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:51:48,619 INFO L87 Difference]: Start difference. First operand 2977 states and 3977 transitions. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2021-11-12 22:51:50,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:51,300 INFO L93 Difference]: Finished difference Result 2981 states and 3979 transitions. [2021-11-12 22:51:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:51:51,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 498 [2021-11-12 22:51:51,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:51,307 INFO L225 Difference]: With dead ends: 2981 [2021-11-12 22:51:51,307 INFO L226 Difference]: Without dead ends: 2979 [2021-11-12 22:51:51,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2984 GetRequests, 2968 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:51:51,308 INFO L933 BasicCegarLoop]: 2727 mSDtfsCounter, 549 mSDsluCounter, 7626 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2162.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 10353 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2164.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:51,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 10353 Invalid, 7 Unknown, 0 Unchecked, 9.57ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2164.70ms Time] [2021-11-12 22:51:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2021-11-12 22:51:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2975. [2021-11-12 22:51:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2006 states have (on average 1.2372881355932204) internal successors, (2482), 2101 states have internal predecessors, (2482), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-12 22:51:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3974 transitions. [2021-11-12 22:51:51,681 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3974 transitions. Word has length 498 [2021-11-12 22:51:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:51,682 INFO L470 AbstractCegarLoop]: Abstraction has 2975 states and 3974 transitions. [2021-11-12 22:51:51,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2021-11-12 22:51:51,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3974 transitions. [2021-11-12 22:51:51,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-12 22:51:51,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:51,689 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:51:51,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:51,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:52,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:52,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:52,290 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:51:52,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:52,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1673189196, now seen corresponding path program 1 times [2021-11-12 22:51:52,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:51:52,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263254787] [2021-11-12 22:51:52,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:52,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:51:52,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:51:52,293 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:51:52,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-11-12 22:51:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:55,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:51:55,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-12 22:51:57,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-12 22:51:59,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:51:59,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263254787] [2021-11-12 22:51:59,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263254787] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:51:59,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1249011873] [2021-11-12 22:51:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:59,498 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:51:59,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:51:59,524 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:51:59,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2021-11-12 22:52:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:01,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:01,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-12 22:52:04,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-12 22:52:06,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1249011873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:06,233 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:06,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [17, 17] total 25 [2021-11-12 22:52:06,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148597890] [2021-11-12 22:52:06,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:06,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:52:06,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:06,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:52:06,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:52:06,236 INFO L87 Difference]: Start difference. First operand 2975 states and 3974 transitions. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (138), 3 states have call predecessors, (138), 2 states have call successors, (138) [2021-11-12 22:52:08,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:13,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:13,385 INFO L93 Difference]: Finished difference Result 4609 states and 6200 transitions. [2021-11-12 22:52:13,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:52:13,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (138), 3 states have call predecessors, (138), 2 states have call successors, (138) Word has length 502 [2021-11-12 22:52:13,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:13,393 INFO L225 Difference]: With dead ends: 4609 [2021-11-12 22:52:13,393 INFO L226 Difference]: Without dead ends: 2975 [2021-11-12 22:52:13,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2006 GetRequests, 1981 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:52:13,397 INFO L933 BasicCegarLoop]: 2608 mSDtfsCounter, 2281 mSDsluCounter, 6819 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5937.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 9427 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.91ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6449.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:13,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 9427 Invalid, 999 Unknown, 0 Unchecked, 26.91ms Time], IncrementalHoareTripleChecker [1 Valid, 997 Invalid, 1 Unknown, 0 Unchecked, 6449.62ms Time] [2021-11-12 22:52:13,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-11-12 22:52:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2975. [2021-11-12 22:52:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2006 states have (on average 1.2362911266201395) internal successors, (2480), 2101 states have internal predecessors, (2480), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-12 22:52:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3972 transitions. [2021-11-12 22:52:13,793 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3972 transitions. Word has length 502 [2021-11-12 22:52:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:13,793 INFO L470 AbstractCegarLoop]: Abstraction has 2975 states and 3972 transitions. [2021-11-12 22:52:13,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (138), 3 states have call predecessors, (138), 2 states have call successors, (138) [2021-11-12 22:52:13,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3972 transitions. [2021-11-12 22:52:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-12 22:52:13,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:13,803 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:13,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:14,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (71)] Ended with exit code 0 [2021-11-12 22:52:14,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:14,204 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:52:14,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:14,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1673129614, now seen corresponding path program 1 times [2021-11-12 22:52:14,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:14,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320371660] [2021-11-12 22:52:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:14,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:14,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:14,208 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:14,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2021-11-12 22:52:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:17,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:52:17,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-12 22:52:19,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-12 22:52:21,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:21,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320371660] [2021-11-12 22:52:21,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320371660] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:21,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [151789605] [2021-11-12 22:52:21,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:21,419 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:21,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:52:21,420 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:52:21,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2021-11-12 22:52:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:23,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:52:23,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:23,899 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-12 22:52:23,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 21 [2021-11-12 22:52:25,939 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_5 (_ BitVec 8)) (v_arrayElimCell_4 (_ BitVec 8)) (v_arrayElimCell_3 (_ BitVec 8)) (v_arrayElimCell_6 (_ BitVec 8))) (let ((.cse0 (concat (concat (concat v_arrayElimCell_5 v_arrayElimCell_6) v_arrayElimCell_4) v_arrayElimCell_3))) (and (= |c_u132_hcd_start_u132_run_#t~mem716#1| .cse0) (= (bvand (_ bv192 32) .cse0) (_ bv0 32))))) is different from true [2021-11-12 22:52:26,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2021-11-12 22:52:26,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:28,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-12 22:52:28,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [151789605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:28,595 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:52:28,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-12 22:52:28,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290920389] [2021-11-12 22:52:28,597 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:28,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:52:28,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:28,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:52:28,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=546, Unknown=1, NotChecked=46, Total=650 [2021-11-12 22:52:28,599 INFO L87 Difference]: Start difference. First operand 2975 states and 3972 transitions. Second operand has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2021-11-12 22:52:30,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:32,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:36,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:45,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:47,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:02,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:03,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:09,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:12,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:14,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:16,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:18,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:20,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:22,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:24,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:26,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:29,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:31,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:32,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:34,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:36,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:38,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:39,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:40,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:43,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:45,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:47,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:49,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:51,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:53,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:55,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:57,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:53:59,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:01,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:03,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:03,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:03,224 INFO L93 Difference]: Finished difference Result 6094 states and 8203 transitions. [2021-11-12 22:54:03,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:54:03,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 502 [2021-11-12 22:54:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:03,248 INFO L225 Difference]: With dead ends: 6094 [2021-11-12 22:54:03,248 INFO L226 Difference]: Without dead ends: 3144 [2021-11-12 22:54:03,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2008 GetRequests, 1980 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=86, Invalid=729, Unknown=1, NotChecked=54, Total=870 [2021-11-12 22:54:03,253 INFO L933 BasicCegarLoop]: 2779 mSDtfsCounter, 353 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 50 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88156.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 4031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.12ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 2867 IncrementalHoareTripleChecker+Unchecked, 90594.23ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:03,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 10235 Invalid, 4031 Unknown, 0 Unchecked, 30.12ms Time], IncrementalHoareTripleChecker [50 Valid, 1088 Invalid, 26 Unknown, 2867 Unchecked, 90594.23ms Time] [2021-11-12 22:54:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-11-12 22:54:03,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2977. [2021-11-12 22:54:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 2008 states have (on average 1.2360557768924303) internal successors, (2482), 2103 states have internal predecessors, (2482), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-12 22:54:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 3974 transitions. [2021-11-12 22:54:03,581 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 3974 transitions. Word has length 502 [2021-11-12 22:54:03,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:03,581 INFO L470 AbstractCegarLoop]: Abstraction has 2977 states and 3974 transitions. [2021-11-12 22:54:03,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2021-11-12 22:54:03,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 3974 transitions. [2021-11-12 22:54:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-12 22:54:03,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:03,589 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:03,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (73)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:03,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:03,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:03,994 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-12 22:54:03,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:03,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1005427233, now seen corresponding path program 1 times [2021-11-12 22:54:03,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:03,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580368755] [2021-11-12 22:54:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:03,997 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:03,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:03,998 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:03,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2021-11-12 22:54:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:07,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 2477 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:54:07,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-12 22:54:09,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-12 22:54:11,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:11,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580368755] [2021-11-12 22:54:11,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580368755] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:11,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [409086123] [2021-11-12 22:54:11,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:11,363 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:11,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:11,379 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:11,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb35c0-7151-4f08-975e-7130394618ec/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process