./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--block--xen-blkfront.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_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/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_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/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_9b2cd17c-6529-4439-a9eb-03225bda3888/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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:55:09,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:55:09,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:55:09,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:55:09,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:55:09,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:55:09,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:55:09,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:55:09,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:55:09,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:55:09,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:55:09,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:55:09,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:55:09,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:55:09,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:55:09,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:55:09,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:55:09,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:55:09,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:55:09,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:55:09,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:55:09,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:55:09,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:55:09,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:55:09,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:55:09,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:55:09,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:55:09,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:55:09,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:55:09,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:55:09,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:55:09,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:55:09,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:55:09,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:55:09,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:55:09,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:55:09,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:55:09,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:55:09,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:55:09,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:55:09,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:55:09,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:55:09,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:55:09,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:55:09,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:55:09,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:55:09,724 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:55:09,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:55:09,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:55:09,725 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:55:09,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:55:09,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:55:09,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:55:09,725 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:55:09,726 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:55:09,726 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:55:09,726 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:55:09,726 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:55:09,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:55:09,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:55:09,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:55:09,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:55:09,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:55:09,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:55:09,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:55:09,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:55:09,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:55:09,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:55:09,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:55:09,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:55:09,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:09,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:55:09,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:55:09,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:55:09,730 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:55:09,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:55:09,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:55:09,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:55:09,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:55:09,731 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_9b2cd17c-6529-4439-a9eb-03225bda3888/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2021-11-12 22:55:09,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:55:10,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:55:10,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:55:10,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:55:10,022 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:55:10,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-12 22:55:10,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/102c02ec8/c56e369955d243379a583b8e82968b65/FLAG76b71f3f4 [2021-11-12 22:55:11,011 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:55:11,012 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-12 22:55:11,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/102c02ec8/c56e369955d243379a583b8e82968b65/FLAG76b71f3f4 [2021-11-12 22:55:11,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/102c02ec8/c56e369955d243379a583b8e82968b65 [2021-11-12 22:55:11,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:55:11,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:55:11,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:11,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:55:11,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:55:11,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:11" (1/1) ... [2021-11-12 22:55:11,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403fe136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:11, skipping insertion in model container [2021-11-12 22:55:11,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:11" (1/1) ... [2021-11-12 22:55:11,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:55:11,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:13,761 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 22:55:13,762 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 22:55:13,764 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 22:55:13,772 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 22:55:13,909 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 22:55:14,057 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 22:55:14,065 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 22:55:14,065 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 22:55:14,068 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 22:55:14,071 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 22:55:14,072 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 22:55:14,074 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 22:55:14,199 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 22:55:14,199 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 22:55:14,207 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 22:55:14,247 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 22:55:14,247 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 22:55:14,271 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 22:55:16,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2021-11-12 22:55:16,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2021-11-12 22:55:16,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2021-11-12 22:55:16,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2021-11-12 22:55:16,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2021-11-12 22:55:16,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2021-11-12 22:55:16,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2021-11-12 22:55:16,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2021-11-12 22:55:16,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2021-11-12 22:55:16,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2021-11-12 22:55:16,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2021-11-12 22:55:16,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2021-11-12 22:55:16,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2021-11-12 22:55:16,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2021-11-12 22:55:16,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2021-11-12 22:55:16,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2021-11-12 22:55:16,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2021-11-12 22:55:16,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2021-11-12 22:55:16,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2021-11-12 22:55:16,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2021-11-12 22:55:16,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2021-11-12 22:55:16,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2021-11-12 22:55:16,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2021-11-12 22:55:16,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2021-11-12 22:55:16,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2021-11-12 22:55:16,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2021-11-12 22:55:16,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2021-11-12 22:55:16,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2021-11-12 22:55:16,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2021-11-12 22:55:16,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2021-11-12 22:55:16,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2021-11-12 22:55:16,079 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2021-11-12 22:55:16,080 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2021-11-12 22:55:16,080 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2021-11-12 22:55:16,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2021-11-12 22:55:16,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2021-11-12 22:55:16,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2021-11-12 22:55:16,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2021-11-12 22:55:16,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2021-11-12 22:55:16,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2021-11-12 22:55:16,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2021-11-12 22:55:16,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2021-11-12 22:55:16,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2021-11-12 22:55:16,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2021-11-12 22:55:16,086 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2021-11-12 22:55:16,086 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2021-11-12 22:55:16,087 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2021-11-12 22:55:16,087 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2021-11-12 22:55:16,088 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2021-11-12 22:55:16,089 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2021-11-12 22:55:16,089 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2021-11-12 22:55:16,090 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2021-11-12 22:55:16,090 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2021-11-12 22:55:16,091 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2021-11-12 22:55:16,091 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2021-11-12 22:55:16,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2021-11-12 22:55:16,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2021-11-12 22:55:16,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2021-11-12 22:55:16,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2021-11-12 22:55:16,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2021-11-12 22:55:16,095 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2021-11-12 22:55:16,095 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2021-11-12 22:55:16,096 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2021-11-12 22:55:16,096 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2021-11-12 22:55:16,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2021-11-12 22:55:16,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2021-11-12 22:55:16,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2021-11-12 22:55:16,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2021-11-12 22:55:16,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2021-11-12 22:55:16,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2021-11-12 22:55:16,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2021-11-12 22:55:16,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2021-11-12 22:55:16,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2021-11-12 22:55:16,102 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2021-11-12 22:55:16,102 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2021-11-12 22:55:16,103 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2021-11-12 22:55:16,103 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2021-11-12 22:55:16,104 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2021-11-12 22:55:16,104 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2021-11-12 22:55:16,105 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2021-11-12 22:55:16,105 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2021-11-12 22:55:16,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2021-11-12 22:55:16,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2021-11-12 22:55:16,107 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2021-11-12 22:55:16,108 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2021-11-12 22:55:16,108 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2021-11-12 22:55:16,109 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2021-11-12 22:55:16,109 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2021-11-12 22:55:16,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:16,145 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 22:55:16,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@689e5f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:16, skipping insertion in model container [2021-11-12 22:55:16,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:16,146 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:55:16,149 INFO L158 Benchmark]: Toolchain (without parser) took 4712.54ms. Allocated memory was 88.1MB in the beginning and 144.7MB in the end (delta: 56.6MB). Free memory was 62.4MB in the beginning and 84.2MB in the end (delta: -21.8MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2021-11-12 22:55:16,149 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 35.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:55:16,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4709.85ms. Allocated memory was 88.1MB in the beginning and 144.7MB in the end (delta: 56.6MB). Free memory was 62.2MB in the beginning and 84.2MB in the end (delta: -22.0MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2021-11-12 22:55:16,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 35.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4709.85ms. Allocated memory was 88.1MB in the beginning and 144.7MB in the end (delta: 56.6MB). Free memory was 62.2MB in the beginning and 84.2MB in the end (delta: -22.0MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5767]: 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_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/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_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/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_9b2cd17c-6529-4439-a9eb-03225bda3888/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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:55:18,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:55:18,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:55:18,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:55:18,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:55:18,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:55:18,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:55:18,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:55:18,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:55:18,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:55:18,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:55:18,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:55:18,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:55:18,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:55:18,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:55:18,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:55:18,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:55:18,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:55:18,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:55:18,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:55:18,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:55:18,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:55:18,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:55:18,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:55:18,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:55:18,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:55:18,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:55:18,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:55:18,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:55:18,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:55:18,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:55:18,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:55:18,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:55:18,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:55:18,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:55:18,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:55:18,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:55:18,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:55:18,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:55:18,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:55:18,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:55:18,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:55:18,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:55:18,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:55:18,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:55:18,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:55:18,680 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:55:18,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:55:18,680 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:55:18,680 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:55:18,681 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:55:18,681 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:55:18,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:55:18,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:55:18,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:55:18,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:55:18,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:55:18,685 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:55:18,685 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:55:18,685 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:55:18,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:55:18,686 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:55:18,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:55:18,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:55:18,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:55:18,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:55:18,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:18,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:55:18,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:55:18,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:55:18,688 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:55:18,688 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:18,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:55:18,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:55:18,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:55:18,689 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_9b2cd17c-6529-4439-a9eb-03225bda3888/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2021-11-12 22:55:19,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:55:19,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:55:19,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:55:19,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:55:19,143 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:55:19,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-12 22:55:19,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/350ee500b/88d3c0089c7e49198be8491772bdcb5d/FLAG5036631da [2021-11-12 22:55:20,341 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:55:20,341 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-12 22:55:20,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/350ee500b/88d3c0089c7e49198be8491772bdcb5d/FLAG5036631da [2021-11-12 22:55:20,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/data/350ee500b/88d3c0089c7e49198be8491772bdcb5d [2021-11-12 22:55:20,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:55:20,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:55:20,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:20,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:55:20,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:55:20,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:20" (1/1) ... [2021-11-12 22:55:20,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e245e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:20, skipping insertion in model container [2021-11-12 22:55:20,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:20" (1/1) ... [2021-11-12 22:55:20,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:55:20,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:25,262 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2021-11-12 22:55:25,265 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2021-11-12 22:55:25,265 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2021-11-12 22:55:25,266 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2021-11-12 22:55:25,267 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2021-11-12 22:55:25,267 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2021-11-12 22:55:25,268 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2021-11-12 22:55:25,269 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2021-11-12 22:55:25,269 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2021-11-12 22:55:25,270 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2021-11-12 22:55:25,270 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2021-11-12 22:55:25,271 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2021-11-12 22:55:25,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2021-11-12 22:55:25,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2021-11-12 22:55:25,273 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2021-11-12 22:55:25,273 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2021-11-12 22:55:25,274 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2021-11-12 22:55:25,274 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2021-11-12 22:55:25,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2021-11-12 22:55:25,284 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2021-11-12 22:55:25,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2021-11-12 22:55:25,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2021-11-12 22:55:25,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2021-11-12 22:55:25,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2021-11-12 22:55:25,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2021-11-12 22:55:25,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2021-11-12 22:55:25,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2021-11-12 22:55:25,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2021-11-12 22:55:25,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2021-11-12 22:55:25,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2021-11-12 22:55:25,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2021-11-12 22:55:25,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2021-11-12 22:55:25,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2021-11-12 22:55:25,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2021-11-12 22:55:25,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2021-11-12 22:55:25,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2021-11-12 22:55:25,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2021-11-12 22:55:25,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2021-11-12 22:55:25,303 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2021-11-12 22:55:25,303 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2021-11-12 22:55:25,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2021-11-12 22:55:25,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2021-11-12 22:55:25,305 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2021-11-12 22:55:25,306 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2021-11-12 22:55:25,307 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2021-11-12 22:55:25,308 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2021-11-12 22:55:25,308 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2021-11-12 22:55:25,310 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2021-11-12 22:55:25,311 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2021-11-12 22:55:25,311 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2021-11-12 22:55:25,312 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2021-11-12 22:55:25,312 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2021-11-12 22:55:25,313 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2021-11-12 22:55:25,313 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2021-11-12 22:55:25,313 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2021-11-12 22:55:25,314 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2021-11-12 22:55:25,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2021-11-12 22:55:25,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2021-11-12 22:55:25,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2021-11-12 22:55:25,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2021-11-12 22:55:25,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2021-11-12 22:55:25,317 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2021-11-12 22:55:25,318 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2021-11-12 22:55:25,318 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2021-11-12 22:55:25,319 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2021-11-12 22:55:25,320 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2021-11-12 22:55:25,321 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2021-11-12 22:55:25,322 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2021-11-12 22:55:25,322 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2021-11-12 22:55:25,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2021-11-12 22:55:25,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2021-11-12 22:55:25,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2021-11-12 22:55:25,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2021-11-12 22:55:25,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2021-11-12 22:55:25,325 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2021-11-12 22:55:25,325 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2021-11-12 22:55:25,326 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2021-11-12 22:55:25,327 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2021-11-12 22:55:25,328 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2021-11-12 22:55:25,328 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2021-11-12 22:55:25,329 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2021-11-12 22:55:25,329 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2021-11-12 22:55:25,330 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2021-11-12 22:55:25,330 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2021-11-12 22:55:25,331 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2021-11-12 22:55:25,331 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2021-11-12 22:55:25,332 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2021-11-12 22:55:25,332 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2021-11-12 22:55:25,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:25,386 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:55:25,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:25,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2021-11-12 22:55:25,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2021-11-12 22:55:25,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2021-11-12 22:55:25,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2021-11-12 22:55:25,866 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2021-11-12 22:55:25,866 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2021-11-12 22:55:25,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2021-11-12 22:55:25,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2021-11-12 22:55:25,868 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2021-11-12 22:55:25,868 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2021-11-12 22:55:25,869 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2021-11-12 22:55:25,869 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2021-11-12 22:55:25,869 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2021-11-12 22:55:25,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2021-11-12 22:55:25,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2021-11-12 22:55:25,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2021-11-12 22:55:25,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2021-11-12 22:55:25,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2021-11-12 22:55:25,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2021-11-12 22:55:25,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2021-11-12 22:55:25,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2021-11-12 22:55:25,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2021-11-12 22:55:25,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2021-11-12 22:55:25,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2021-11-12 22:55:25,875 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2021-11-12 22:55:25,875 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2021-11-12 22:55:25,875 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2021-11-12 22:55:25,876 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2021-11-12 22:55:25,876 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2021-11-12 22:55:25,877 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2021-11-12 22:55:25,877 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2021-11-12 22:55:25,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2021-11-12 22:55:25,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2021-11-12 22:55:25,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2021-11-12 22:55:25,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2021-11-12 22:55:25,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2021-11-12 22:55:25,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2021-11-12 22:55:25,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2021-11-12 22:55:25,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2021-11-12 22:55:25,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2021-11-12 22:55:25,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2021-11-12 22:55:25,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2021-11-12 22:55:25,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2021-11-12 22:55:25,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2021-11-12 22:55:25,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2021-11-12 22:55:25,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2021-11-12 22:55:25,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2021-11-12 22:55:25,885 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2021-11-12 22:55:25,885 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2021-11-12 22:55:25,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2021-11-12 22:55:25,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2021-11-12 22:55:25,887 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2021-11-12 22:55:25,887 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2021-11-12 22:55:25,888 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2021-11-12 22:55:25,888 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2021-11-12 22:55:25,888 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2021-11-12 22:55:25,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2021-11-12 22:55:25,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2021-11-12 22:55:25,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2021-11-12 22:55:25,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2021-11-12 22:55:25,891 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2021-11-12 22:55:25,891 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2021-11-12 22:55:25,892 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2021-11-12 22:55:25,892 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2021-11-12 22:55:25,893 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2021-11-12 22:55:25,893 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2021-11-12 22:55:25,893 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2021-11-12 22:55:25,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2021-11-12 22:55:25,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2021-11-12 22:55:25,895 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2021-11-12 22:55:25,895 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2021-11-12 22:55:25,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2021-11-12 22:55:25,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2021-11-12 22:55:25,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2021-11-12 22:55:25,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2021-11-12 22:55:25,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2021-11-12 22:55:25,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2021-11-12 22:55:25,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2021-11-12 22:55:25,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2021-11-12 22:55:25,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2021-11-12 22:55:25,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2021-11-12 22:55:25,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2021-11-12 22:55:25,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2021-11-12 22:55:25,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2021-11-12 22:55:25,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2021-11-12 22:55:25,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2021-11-12 22:55:25,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2021-11-12 22:55:25,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2021-11-12 22:55:25,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:25,920 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:55:26,442 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2021-11-12 22:55:26,443 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2021-11-12 22:55:26,443 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2021-11-12 22:55:26,444 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2021-11-12 22:55:26,444 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2021-11-12 22:55:26,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2021-11-12 22:55:26,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2021-11-12 22:55:26,446 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2021-11-12 22:55:26,446 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2021-11-12 22:55:26,447 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2021-11-12 22:55:26,447 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2021-11-12 22:55:26,447 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2021-11-12 22:55:26,448 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2021-11-12 22:55:26,448 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2021-11-12 22:55:26,449 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2021-11-12 22:55:26,449 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2021-11-12 22:55:26,450 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2021-11-12 22:55:26,450 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2021-11-12 22:55:26,450 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2021-11-12 22:55:26,451 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2021-11-12 22:55:26,451 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2021-11-12 22:55:26,452 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2021-11-12 22:55:26,452 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2021-11-12 22:55:26,453 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2021-11-12 22:55:26,453 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2021-11-12 22:55:26,453 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2021-11-12 22:55:26,454 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2021-11-12 22:55:26,454 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2021-11-12 22:55:26,455 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2021-11-12 22:55:26,455 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2021-11-12 22:55:26,456 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2021-11-12 22:55:26,456 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2021-11-12 22:55:26,456 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2021-11-12 22:55:26,457 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2021-11-12 22:55:26,457 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2021-11-12 22:55:26,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2021-11-12 22:55:26,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2021-11-12 22:55:26,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2021-11-12 22:55:26,459 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2021-11-12 22:55:26,459 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2021-11-12 22:55:26,460 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2021-11-12 22:55:26,460 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2021-11-12 22:55:26,461 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2021-11-12 22:55:26,461 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2021-11-12 22:55:26,462 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2021-11-12 22:55:26,462 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2021-11-12 22:55:26,462 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2021-11-12 22:55:26,463 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2021-11-12 22:55:26,463 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2021-11-12 22:55:26,464 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2021-11-12 22:55:26,464 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2021-11-12 22:55:26,465 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2021-11-12 22:55:26,465 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2021-11-12 22:55:26,465 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2021-11-12 22:55:26,466 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2021-11-12 22:55:26,466 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2021-11-12 22:55:26,467 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2021-11-12 22:55:26,467 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2021-11-12 22:55:26,467 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2021-11-12 22:55:26,468 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2021-11-12 22:55:26,468 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2021-11-12 22:55:26,469 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2021-11-12 22:55:26,469 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2021-11-12 22:55:26,469 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2021-11-12 22:55:26,470 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2021-11-12 22:55:26,470 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2021-11-12 22:55:26,471 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2021-11-12 22:55:26,471 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2021-11-12 22:55:26,471 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2021-11-12 22:55:26,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2021-11-12 22:55:26,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2021-11-12 22:55:26,473 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2021-11-12 22:55:26,473 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2021-11-12 22:55:26,473 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2021-11-12 22:55:26,474 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2021-11-12 22:55:26,474 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2021-11-12 22:55:26,475 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2021-11-12 22:55:26,475 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2021-11-12 22:55:26,475 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_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2021-11-12 22:55:26,476 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2021-11-12 22:55:26,476 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2021-11-12 22:55:26,477 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2021-11-12 22:55:26,477 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2021-11-12 22:55:26,478 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2021-11-12 22:55:26,478 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2021-11-12 22:55:26,478 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2021-11-12 22:55:26,479 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2021-11-12 22:55:26,479 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2021-11-12 22:55:26,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:26,780 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:55:26,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26 WrapperNode [2021-11-12 22:55:26,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:26,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:55:26,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:55:26,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:55:26,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:26,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:55:27,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:55:27,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:55:27,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:55:27,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:55:27,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:55:27,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:55:27,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:55:27,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (1/1) ... [2021-11-12 22:55:27,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:27,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:27,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:55:27,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:55:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2021-11-12 22:55:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2021-11-12 22:55:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-12 22:55:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:55:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:55:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:55:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:55:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:55:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:55:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:55:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:55:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2021-11-12 22:55:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2021-11-12 22:55:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:55:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:55:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2021-11-12 22:55:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2021-11-12 22:55:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-12 22:55:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-12 22:55:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2021-11-12 22:55:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2021-11-12 22:55:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:55:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:55:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-11-12 22:55:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-11-12 22:55:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:55:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:55:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2021-11-12 22:55:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2021-11-12 22:55:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-12 22:55:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-12 22:55:27,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:55:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:55:27,667 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2021-11-12 22:55:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2021-11-12 22:55:27,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:55:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:55:27,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:55:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2021-11-12 22:55:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2021-11-12 22:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-11-12 22:55:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-11-12 22:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:55:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 22:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 22:55:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:55:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2021-11-12 22:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2021-11-12 22:55:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2021-11-12 22:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2021-11-12 22:55:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2021-11-12 22:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2021-11-12 22:55:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-12 22:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-12 22:55:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-12 22:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-12 22:55:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2021-11-12 22:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2021-11-12 22:55:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-12 22:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-12 22:55:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-12 22:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-12 22:55:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:55:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2021-11-12 22:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2021-11-12 22:55:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:55:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:55:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 22:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 22:55:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:55:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:55:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:55:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:55:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:55:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-12 22:55:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-12 22:55:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:55:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:55:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2021-11-12 22:55:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2021-11-12 22:55:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-11-12 22:55:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-11-12 22:55:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:55:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:55:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:55:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-12 22:55:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-12 22:55:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2021-11-12 22:55:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2021-11-12 22:55:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-12 22:55:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-12 22:55:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2021-11-12 22:55:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2021-11-12 22:55:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:55:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:55:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:55:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-11-12 22:55:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-11-12 22:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-12 22:55:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-12 22:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2021-11-12 22:55:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2021-11-12 22:55:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-12 22:55:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-12 22:55:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2021-11-12 22:55:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2021-11-12 22:55:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2021-11-12 22:55:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2021-11-12 22:55:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:55:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-11-12 22:55:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-11-12 22:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:55:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2021-11-12 22:55:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2021-11-12 22:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-11-12 22:55:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2021-11-12 22:55:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:55:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2021-11-12 22:55:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2021-11-12 22:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:55:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2021-11-12 22:55:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2021-11-12 22:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-11-12 22:55:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-11-12 22:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-12 22:55:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-12 22:55:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-11-12 22:55:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-11-12 22:55:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:55:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:55:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:55:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:55:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-12 22:55:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-12 22:55:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:55:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:55:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:55:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:55:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:55:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:55:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:55:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:55:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-12 22:55:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-12 22:55:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-12 22:55:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-12 22:55:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:55:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:55:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:55:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-12 22:55:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-12 22:55:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:55:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:55:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2021-11-12 22:55:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2021-11-12 22:55:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 22:55:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 22:55:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2021-11-12 22:55:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2021-11-12 22:55:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:55:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:55:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2021-11-12 22:55:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2021-11-12 22:55:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:55:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:55:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:55:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:55:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-11-12 22:55:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-11-12 22:55:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 22:55:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 22:55:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2021-11-12 22:55:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2021-11-12 22:55:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:55:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:55:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:55:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:55:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:55:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:55:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:55:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:55:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2021-11-12 22:55:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2021-11-12 22:55:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:55:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:55:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:55:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:55:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:55:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:55:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:55:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:55:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:55:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:55:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:55:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:55:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2021-11-12 22:55:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2021-11-12 22:55:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:55:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:55:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2021-11-12 22:55:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2021-11-12 22:55:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:55:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:55:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-12 22:55:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2021-11-12 22:55:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2021-11-12 22:55:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2021-11-12 22:55:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2021-11-12 22:55:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-11-12 22:55:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-11-12 22:55:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2021-11-12 22:55:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2021-11-12 22:55:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:55:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:55:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:55:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:55:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2021-11-12 22:55:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2021-11-12 22:55:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-12 22:55:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-12 22:55:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2021-11-12 22:55:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2021-11-12 22:55:33,909 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:56:31,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:56:31,526 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-12 22:56:31,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:31 BoogieIcfgContainer [2021-11-12 22:56:31,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:56:31,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:56:31,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:56:31,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:56:31,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:55:20" (1/3) ... [2021-11-12 22:56:31,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447ccfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:31, skipping insertion in model container [2021-11-12 22:56:31,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:26" (2/3) ... [2021-11-12 22:56:31,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447ccfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:31, skipping insertion in model container [2021-11-12 22:56:31,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:31" (3/3) ... [2021-11-12 22:56:31,538 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-12 22:56:31,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:56:31,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-12 22:56:31,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:56:31,606 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 22:56:31,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-12 22:56:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1231 states have (on average 1.3249390739236393) internal successors, (1631), 1291 states have internal predecessors, (1631), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2021-11-12 22:56:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 22:56:31,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:31,664 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] [2021-11-12 22:56:31,665 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 32 more)] === [2021-11-12 22:56:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 978063183, now seen corresponding path program 1 times [2021-11-12 22:56:31,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:31,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708063919] [2021-11-12 22:56:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:31,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:31,694 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:31,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:56:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:35,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:35,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:35,684 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 22:56:35,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:35,948 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 22:56:35,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:35,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708063919] [2021-11-12 22:56:35,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708063919] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:35,950 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:35,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:56:35,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605628180] [2021-11-12 22:56:35,952 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:35,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:35,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:35,989 INFO L87 Difference]: Start difference. First operand has 1748 states, 1231 states have (on average 1.3249390739236393) internal successors, (1631), 1291 states have internal predecessors, (1631), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 22:56:36,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:36,255 INFO L93 Difference]: Finished difference Result 3440 states and 4793 transitions. [2021-11-12 22:56:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:36,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 50 [2021-11-12 22:56:36,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:36,283 INFO L225 Difference]: With dead ends: 3440 [2021-11-12 22:56:36,283 INFO L226 Difference]: Without dead ends: 1712 [2021-11-12 22:56:36,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 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 22:56:36,302 INFO L933 BasicCegarLoop]: 2268 mSDtfsCounter, 2230 mSDsluCounter, 4532 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 6800 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.13ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:36,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2232 Valid, 6800 Invalid, 2 Unknown, 0 Unchecked, 36.20ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 7.13ms Time] [2021-11-12 22:56:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-11-12 22:56:36,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2021-11-12 22:56:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1202 states have (on average 1.2612312811980033) internal successors, (1516), 1258 states have internal predecessors, (1516), 370 states have call successors, (370), 108 states have call predecessors, (370), 107 states have return successors, (368), 366 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-12 22:56:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2254 transitions. [2021-11-12 22:56:36,471 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2254 transitions. Word has length 50 [2021-11-12 22:56:36,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:36,473 INFO L470 AbstractCegarLoop]: Abstraction has 1712 states and 2254 transitions. [2021-11-12 22:56:36,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 22:56:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2254 transitions. [2021-11-12 22:56:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 22:56:36,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:36,477 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] [2021-11-12 22:56:36,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:36,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:36,691 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 32 more)] === [2021-11-12 22:56:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:36,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1447234358, now seen corresponding path program 1 times [2021-11-12 22:56:36,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:36,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519642309] [2021-11-12 22:56:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:36,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:36,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:36,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:56:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:39,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:39,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:40,411 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 22:56:40,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:40,676 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 22:56:40,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:40,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519642309] [2021-11-12 22:56:40,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519642309] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:40,677 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:40,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:56:40,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929981691] [2021-11-12 22:56:40,677 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:40,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:40,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:40,680 INFO L87 Difference]: Start difference. First operand 1712 states and 2254 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 22:56:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:41,106 INFO L93 Difference]: Finished difference Result 3371 states and 4447 transitions. [2021-11-12 22:56:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:56:41,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 56 [2021-11-12 22:56:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:41,134 INFO L225 Difference]: With dead ends: 3371 [2021-11-12 22:56:41,134 INFO L226 Difference]: Without dead ends: 3369 [2021-11-12 22:56:41,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 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 22:56:41,138 INFO L933 BasicCegarLoop]: 2711 mSDtfsCounter, 2179 mSDsluCounter, 7628 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 10339 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.91ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:41,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2181 Valid, 10339 Invalid, 26 Unknown, 0 Unchecked, 37.54ms Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 92.91ms Time] [2021-11-12 22:56:41,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2021-11-12 22:56:41,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3175. [2021-11-12 22:56:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2256 states have (on average 1.2650709219858156) internal successors, (2854), 2338 states have internal predecessors, (2854), 691 states have call successors, (691), 196 states have call predecessors, (691), 195 states have return successors, (697), 681 states have call predecessors, (697), 689 states have call successors, (697) [2021-11-12 22:56:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4242 transitions. [2021-11-12 22:56:41,368 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4242 transitions. Word has length 56 [2021-11-12 22:56:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:41,368 INFO L470 AbstractCegarLoop]: Abstraction has 3175 states and 4242 transitions. [2021-11-12 22:56:41,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 22:56:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4242 transitions. [2021-11-12 22:56:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-12 22:56:41,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:41,372 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] [2021-11-12 22:56:41,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:41,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:41,587 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 32 more)] === [2021-11-12 22:56:41,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:41,587 INFO L85 PathProgramCache]: Analyzing trace with hash 129867478, now seen corresponding path program 1 times [2021-11-12 22:56:41,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:41,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609405019] [2021-11-12 22:56:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:41,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:41,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:41,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:41,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:56:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:44,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:44,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:45,350 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 22:56:45,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:45,622 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 22:56:45,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:45,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609405019] [2021-11-12 22:56:45,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609405019] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:45,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:45,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:56:45,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104794207] [2021-11-12 22:56:45,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:45,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:45,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:45,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:45,625 INFO L87 Difference]: Start difference. First operand 3175 states and 4242 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 22:56:46,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:46,032 INFO L93 Difference]: Finished difference Result 6309 states and 8436 transitions. [2021-11-12 22:56:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:56:46,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 62 [2021-11-12 22:56:46,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:46,084 INFO L225 Difference]: With dead ends: 6309 [2021-11-12 22:56:46,084 INFO L226 Difference]: Without dead ends: 6307 [2021-11-12 22:56:46,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 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 22:56:46,090 INFO L933 BasicCegarLoop]: 2674 mSDtfsCounter, 2207 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 7543 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.67ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.80ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:46,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 7543 Invalid, 16 Unknown, 0 Unchecked, 26.67ms Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 59.80ms Time] [2021-11-12 22:56:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2021-11-12 22:56:46,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6124. [2021-11-12 22:56:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6124 states, 4377 states have (on average 1.2670779072424034) internal successors, (5546), 4510 states have internal predecessors, (5546), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:56:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 8248 transitions. [2021-11-12 22:56:46,494 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 8248 transitions. Word has length 62 [2021-11-12 22:56:46,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:46,495 INFO L470 AbstractCegarLoop]: Abstraction has 6124 states and 8248 transitions. [2021-11-12 22:56:46,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 22:56:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 8248 transitions. [2021-11-12 22:56:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-12 22:56:46,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:46,499 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] [2021-11-12 22:56:46,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:46,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:46,714 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 32 more)] === [2021-11-12 22:56:46,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash 77930130, now seen corresponding path program 1 times [2021-11-12 22:56:46,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:46,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033544001] [2021-11-12 22:56:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:46,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:46,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:46,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:56:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:49,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:49,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:50,478 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 22:56:50,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:50,791 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 22:56:50,791 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:50,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033544001] [2021-11-12 22:56:50,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033544001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:50,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:50,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:56:50,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40496710] [2021-11-12 22:56:50,792 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:50,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:50,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:50,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:50,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:50,793 INFO L87 Difference]: Start difference. First operand 6124 states and 8248 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 22:56:51,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:51,068 INFO L93 Difference]: Finished difference Result 6124 states and 8248 transitions. [2021-11-12 22:56:51,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:51,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 68 [2021-11-12 22:56:51,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:51,119 INFO L225 Difference]: With dead ends: 6124 [2021-11-12 22:56:51,119 INFO L226 Difference]: Without dead ends: 6122 [2021-11-12 22:56:51,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 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 22:56:51,126 INFO L933 BasicCegarLoop]: 2250 mSDtfsCounter, 2197 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.96ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.12ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:51,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2199 Valid, 4498 Invalid, 2 Unknown, 0 Unchecked, 14.96ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 7.12ms Time] [2021-11-12 22:56:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2021-11-12 22:56:51,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6122. [2021-11-12 22:56:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 4376 states have (on average 1.2669104204753199) internal successors, (5544), 4508 states have internal predecessors, (5544), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:56:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 8246 transitions. [2021-11-12 22:56:51,596 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 8246 transitions. Word has length 68 [2021-11-12 22:56:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:51,598 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 8246 transitions. [2021-11-12 22:56:51,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 22:56:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 8246 transitions. [2021-11-12 22:56:51,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-12 22:56:51,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:51,602 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] [2021-11-12 22:56:51,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:51,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:51,823 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 32 more)] === [2021-11-12 22:56:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1629920272, now seen corresponding path program 1 times [2021-11-12 22:56:51,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:51,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343974452] [2021-11-12 22:56:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:51,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:51,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:51,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:51,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:56:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:54,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:54,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:55,530 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 22:56:55,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:55,836 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 22:56:55,836 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:55,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343974452] [2021-11-12 22:56:55,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343974452] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:55,837 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:55,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:56:55,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450612815] [2021-11-12 22:56:55,837 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:55,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:55,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:55,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:55,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:55,839 INFO L87 Difference]: Start difference. First operand 6122 states and 8246 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 22:56:56,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:56,110 INFO L93 Difference]: Finished difference Result 6122 states and 8246 transitions. [2021-11-12 22:56:56,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:56,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 74 [2021-11-12 22:56:56,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:56,156 INFO L225 Difference]: With dead ends: 6122 [2021-11-12 22:56:56,156 INFO L226 Difference]: Without dead ends: 6120 [2021-11-12 22:56:56,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 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 22:56:56,162 INFO L933 BasicCegarLoop]: 2248 mSDtfsCounter, 2189 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.79ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:56,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2191 Valid, 4494 Invalid, 2 Unknown, 0 Unchecked, 13.48ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.79ms Time] [2021-11-12 22:56:56,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2021-11-12 22:56:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 6120. [2021-11-12 22:56:56,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6120 states, 4375 states have (on average 1.2667428571428572) internal successors, (5542), 4506 states have internal predecessors, (5542), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:56:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 8244 transitions. [2021-11-12 22:56:56,543 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 8244 transitions. Word has length 74 [2021-11-12 22:56:56,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:56,543 INFO L470 AbstractCegarLoop]: Abstraction has 6120 states and 8244 transitions. [2021-11-12 22:56:56,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 22:56:56,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 8244 transitions. [2021-11-12 22:56:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-12 22:56:56,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:56,546 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] [2021-11-12 22:56:56,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:56,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,771 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 32 more)] === [2021-11-12 22:56:56,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:56,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1067365840, now seen corresponding path program 1 times [2021-11-12 22:56:56,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:56,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351090099] [2021-11-12 22:56:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:56,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:56,774 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:56,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:56:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:59,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:59,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:00,417 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 22:57:00,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:00,748 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 22:57:00,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:00,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351090099] [2021-11-12 22:57:00,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351090099] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:00,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:00,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:57:00,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699370353] [2021-11-12 22:57:00,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:00,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:00,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:00,751 INFO L87 Difference]: Start difference. First operand 6120 states and 8244 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 22:57:01,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:01,136 INFO L93 Difference]: Finished difference Result 6120 states and 8244 transitions. [2021-11-12 22:57:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:01,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 80 [2021-11-12 22:57:01,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:01,190 INFO L225 Difference]: With dead ends: 6120 [2021-11-12 22:57:01,191 INFO L226 Difference]: Without dead ends: 6118 [2021-11-12 22:57:01,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 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 22:57:01,195 INFO L933 BasicCegarLoop]: 2246 mSDtfsCounter, 2181 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.42ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:01,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2183 Valid, 4490 Invalid, 2 Unknown, 0 Unchecked, 13.58ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.42ms Time] [2021-11-12 22:57:01,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2021-11-12 22:57:01,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 6118. [2021-11-12 22:57:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 4374 states have (on average 1.266575217192501) internal successors, (5540), 4504 states have internal predecessors, (5540), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 8242 transitions. [2021-11-12 22:57:01,566 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 8242 transitions. Word has length 80 [2021-11-12 22:57:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:01,568 INFO L470 AbstractCegarLoop]: Abstraction has 6118 states and 8242 transitions. [2021-11-12 22:57:01,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 22:57:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 8242 transitions. [2021-11-12 22:57:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 22:57:01,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:01,576 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] [2021-11-12 22:57:01,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:01,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:01,799 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 32 more)] === [2021-11-12 22:57:01,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:01,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1911493740, now seen corresponding path program 1 times [2021-11-12 22:57:01,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:01,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393754339] [2021-11-12 22:57:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:01,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:01,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:01,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:01,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:57:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:04,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:04,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:05,443 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 22:57:05,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:05,733 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 22:57:05,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:05,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393754339] [2021-11-12 22:57:05,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393754339] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:05,734 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:05,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:57:05,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574843028] [2021-11-12 22:57:05,734 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:05,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:05,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:05,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:05,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:05,735 INFO L87 Difference]: Start difference. First operand 6118 states and 8242 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 22:57:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:06,037 INFO L93 Difference]: Finished difference Result 6118 states and 8242 transitions. [2021-11-12 22:57:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:06,038 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), 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 86 [2021-11-12 22:57:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:06,064 INFO L225 Difference]: With dead ends: 6118 [2021-11-12 22:57:06,065 INFO L226 Difference]: Without dead ends: 6116 [2021-11-12 22:57:06,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 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 22:57:06,070 INFO L933 BasicCegarLoop]: 2244 mSDtfsCounter, 2173 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.79ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:06,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 4486 Invalid, 2 Unknown, 0 Unchecked, 12.20ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 7.79ms Time] [2021-11-12 22:57:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6116 states. [2021-11-12 22:57:06,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6116 to 6116. [2021-11-12 22:57:06,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6116 states, 4373 states have (on average 1.26640750057169) internal successors, (5538), 4502 states have internal predecessors, (5538), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 8240 transitions. [2021-11-12 22:57:06,420 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 8240 transitions. Word has length 86 [2021-11-12 22:57:06,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:06,421 INFO L470 AbstractCegarLoop]: Abstraction has 6116 states and 8240 transitions. [2021-11-12 22:57:06,421 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), 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 22:57:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 8240 transitions. [2021-11-12 22:57:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-12 22:57:06,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:06,423 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] [2021-11-12 22:57:06,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:06,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:06,647 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 32 more)] === [2021-11-12 22:57:06,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:06,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1715100088, now seen corresponding path program 1 times [2021-11-12 22:57:06,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:06,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111199802] [2021-11-12 22:57:06,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:06,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:06,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:06,650 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:06,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:57:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:09,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:09,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:10,427 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 22:57:10,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:10,735 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 22:57:10,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:10,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111199802] [2021-11-12 22:57:10,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111199802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:10,736 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:10,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:57:10,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130615730] [2021-11-12 22:57:10,736 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:10,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:10,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:10,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:10,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:10,738 INFO L87 Difference]: Start difference. First operand 6116 states and 8240 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 22:57:11,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:11,082 INFO L93 Difference]: Finished difference Result 6116 states and 8240 transitions. [2021-11-12 22:57:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:11,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 92 [2021-11-12 22:57:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:11,109 INFO L225 Difference]: With dead ends: 6116 [2021-11-12 22:57:11,109 INFO L226 Difference]: Without dead ends: 6114 [2021-11-12 22:57:11,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 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 22:57:11,114 INFO L933 BasicCegarLoop]: 2242 mSDtfsCounter, 2166 mSDsluCounter, 4472 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 6714 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.52ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:11,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2168 Valid, 6714 Invalid, 2 Unknown, 0 Unchecked, 14.46ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.52ms Time] [2021-11-12 22:57:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2021-11-12 22:57:11,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 6114. [2021-11-12 22:57:11,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6114 states, 4372 states have (on average 1.2662397072278133) internal successors, (5536), 4500 states have internal predecessors, (5536), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 8238 transitions. [2021-11-12 22:57:11,520 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 8238 transitions. Word has length 92 [2021-11-12 22:57:11,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:11,521 INFO L470 AbstractCegarLoop]: Abstraction has 6114 states and 8238 transitions. [2021-11-12 22:57:11,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 22:57:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 8238 transitions. [2021-11-12 22:57:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 22:57:11,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:11,524 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:11,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:11,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,747 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 32 more)] === [2021-11-12 22:57:11,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:11,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1274599851, now seen corresponding path program 1 times [2021-11-12 22:57:11,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:11,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240127187] [2021-11-12 22:57:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:11,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:11,750 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:11,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:57:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:14,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 22:57:14,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-12 22:57:16,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-12 22:57:18,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:18,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240127187] [2021-11-12 22:57:18,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240127187] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:57:18,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:57:18,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-12 22:57:18,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302365592] [2021-11-12 22:57:18,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:18,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:57:18,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:18,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:57:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:57:18,361 INFO L87 Difference]: Start difference. First operand 6114 states and 8238 transitions. Second operand has 12 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 22:57:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:20,705 INFO L93 Difference]: Finished difference Result 12496 states and 16891 transitions. [2021-11-12 22:57:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:57:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2021-11-12 22:57:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:20,738 INFO L225 Difference]: With dead ends: 12496 [2021-11-12 22:57:20,739 INFO L226 Difference]: Without dead ends: 6405 [2021-11-12 22:57:20,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 207 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 22:57:20,767 INFO L933 BasicCegarLoop]: 2488 mSDtfsCounter, 596 mSDsluCounter, 19057 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1274.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 21545 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.64ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1411.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:20,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [798 Valid, 21545 Invalid, 367 Unknown, 0 Unchecked, 41.64ms Time], IncrementalHoareTripleChecker [3 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1411.69ms Time] [2021-11-12 22:57:20,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2021-11-12 22:57:21,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6114. [2021-11-12 22:57:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6114 states, 4372 states have (on average 1.266010978956999) internal successors, (5535), 4499 states have internal predecessors, (5535), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6114 states to 6114 states and 8237 transitions. [2021-11-12 22:57:21,210 INFO L78 Accepts]: Start accepts. Automaton has 6114 states and 8237 transitions. Word has length 113 [2021-11-12 22:57:21,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:21,211 INFO L470 AbstractCegarLoop]: Abstraction has 6114 states and 8237 transitions. [2021-11-12 22:57:21,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 22:57:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6114 states and 8237 transitions. [2021-11-12 22:57:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-12 22:57:21,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:21,213 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] [2021-11-12 22:57:21,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:21,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:21,427 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 32 more)] === [2021-11-12 22:57:21,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1056393611, now seen corresponding path program 1 times [2021-11-12 22:57:21,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:21,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638756824] [2021-11-12 22:57:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:21,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:21,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:21,431 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:21,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:57:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:24,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:24,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:25,160 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 22:57:25,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:25,527 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 22:57:25,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:25,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638756824] [2021-11-12 22:57:25,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638756824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:25,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:25,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:57:25,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142840352] [2021-11-12 22:57:25,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:25,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:25,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:25,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:25,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:25,529 INFO L87 Difference]: Start difference. First operand 6114 states and 8237 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 22:57:25,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:25,913 INFO L93 Difference]: Finished difference Result 6114 states and 8237 transitions. [2021-11-12 22:57:25,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:25,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 94 [2021-11-12 22:57:25,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:25,937 INFO L225 Difference]: With dead ends: 6114 [2021-11-12 22:57:25,938 INFO L226 Difference]: Without dead ends: 6112 [2021-11-12 22:57:25,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 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 22:57:25,942 INFO L933 BasicCegarLoop]: 2239 mSDtfsCounter, 2160 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 4476 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.63ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:25,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2162 Valid, 4476 Invalid, 2 Unknown, 0 Unchecked, 11.82ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.63ms Time] [2021-11-12 22:57:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2021-11-12 22:57:26,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 6112. [2021-11-12 22:57:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6112 states, 4371 states have (on average 1.2658430565088081) internal successors, (5533), 4497 states have internal predecessors, (5533), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:26,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8235 transitions. [2021-11-12 22:57:26,385 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8235 transitions. Word has length 94 [2021-11-12 22:57:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:26,385 INFO L470 AbstractCegarLoop]: Abstraction has 6112 states and 8235 transitions. [2021-11-12 22:57:26,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 22:57:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8235 transitions. [2021-11-12 22:57:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 22:57:26,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:26,389 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:26,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:26,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:26,603 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 32 more)] === [2021-11-12 22:57:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1717724750, now seen corresponding path program 1 times [2021-11-12 22:57:26,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:26,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282902502] [2021-11-12 22:57:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:26,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:26,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:26,609 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:26,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:57:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:30,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:57:30,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:57:30,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:57:31,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:31,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282902502] [2021-11-12 22:57:31,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282902502] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:31,334 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:31,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-12 22:57:31,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695305095] [2021-11-12 22:57:31,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:31,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:57:31,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:31,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:57:31,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:57:31,336 INFO L87 Difference]: Start difference. First operand 6112 states and 8235 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:57:33,498 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 22:57:35,511 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 22:57:41,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:41,818 INFO L93 Difference]: Finished difference Result 12197 states and 16494 transitions. [2021-11-12 22:57:41,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:57:41,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 117 [2021-11-12 22:57:41,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:41,845 INFO L225 Difference]: With dead ends: 12197 [2021-11-12 22:57:41,845 INFO L226 Difference]: Without dead ends: 6112 [2021-11-12 22:57:41,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:57:41,873 INFO L933 BasicCegarLoop]: 2237 mSDtfsCounter, 2187 mSDsluCounter, 7451 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9401.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 9688 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9918.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:41,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2192 Valid, 9688 Invalid, 1492 Unknown, 0 Unchecked, 35.11ms Time], IncrementalHoareTripleChecker [1 Valid, 1489 Invalid, 2 Unknown, 0 Unchecked, 9918.56ms Time] [2021-11-12 22:57:41,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2021-11-12 22:57:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 6112. [2021-11-12 22:57:42,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6112 states, 4371 states have (on average 1.2649279341111874) internal successors, (5529), 4497 states have internal predecessors, (5529), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8231 transitions. [2021-11-12 22:57:42,361 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8231 transitions. Word has length 117 [2021-11-12 22:57:42,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:42,361 INFO L470 AbstractCegarLoop]: Abstraction has 6112 states and 8231 transitions. [2021-11-12 22:57:42,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:57:42,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8231 transitions. [2021-11-12 22:57:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 22:57:42,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:42,364 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:42,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:42,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:42,586 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-12 22:57:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1717784332, now seen corresponding path program 1 times [2021-11-12 22:57:42,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:42,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294586480] [2021-11-12 22:57:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:42,590 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:42,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:42,591 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:42,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:57:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:46,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:46,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:57:46,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:57:46,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:46,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294586480] [2021-11-12 22:57:46,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294586480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:46,588 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:46,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:57:46,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567815486] [2021-11-12 22:57:46,589 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:46,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:57:46,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:46,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:57:46,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:57:46,591 INFO L87 Difference]: Start difference. First operand 6112 states and 8231 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-12 22:57:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:46,913 INFO L93 Difference]: Finished difference Result 6112 states and 8231 transitions. [2021-11-12 22:57:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2021-11-12 22:57:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:46,936 INFO L225 Difference]: With dead ends: 6112 [2021-11-12 22:57:46,936 INFO L226 Difference]: Without dead ends: 6110 [2021-11-12 22:57:46,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 228 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 22:57:46,941 INFO L933 BasicCegarLoop]: 2236 mSDtfsCounter, 46 mSDsluCounter, 4450 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.96ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.15ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:46,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 6686 Invalid, 3 Unknown, 0 Unchecked, 6.96ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 8.15ms Time] [2021-11-12 22:57:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6110 states. [2021-11-12 22:57:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6110 to 6110. [2021-11-12 22:57:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6110 states, 4370 states have (on average 1.2640732265446224) internal successors, (5524), 4495 states have internal predecessors, (5524), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 8226 transitions. [2021-11-12 22:57:47,414 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 8226 transitions. Word has length 117 [2021-11-12 22:57:47,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:47,416 INFO L470 AbstractCegarLoop]: Abstraction has 6110 states and 8226 transitions. [2021-11-12 22:57:47,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-12 22:57:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 8226 transitions. [2021-11-12 22:57:47,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-12 22:57:47,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:47,419 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] [2021-11-12 22:57:47,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:47,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:47,642 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 32 more)] === [2021-11-12 22:57:47,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1910334215, now seen corresponding path program 1 times [2021-11-12 22:57:47,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:47,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994370095] [2021-11-12 22:57:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:47,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:47,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:47,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:47,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:57:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:50,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:50,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:51,437 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 22:57:51,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:51,755 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 22:57:51,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:51,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994370095] [2021-11-12 22:57:51,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994370095] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:51,755 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:51,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:57:51,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090303003] [2021-11-12 22:57:51,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:51,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:51,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:51,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:51,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:51,757 INFO L87 Difference]: Start difference. First operand 6110 states and 8226 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 22:57:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:52,213 INFO L93 Difference]: Finished difference Result 6110 states and 8226 transitions. [2021-11-12 22:57:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 100 [2021-11-12 22:57:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:52,238 INFO L225 Difference]: With dead ends: 6110 [2021-11-12 22:57:52,239 INFO L226 Difference]: Without dead ends: 6108 [2021-11-12 22:57:52,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 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 22:57:52,243 INFO L933 BasicCegarLoop]: 2234 mSDtfsCounter, 2149 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 4466 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:52,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2151 Valid, 4466 Invalid, 2 Unknown, 0 Unchecked, 8.54ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.30ms Time] [2021-11-12 22:57:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2021-11-12 22:57:52,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 6108. [2021-11-12 22:57:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4369 states have (on average 1.2639047837033646) internal successors, (5522), 4493 states have internal predecessors, (5522), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8224 transitions. [2021-11-12 22:57:52,722 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8224 transitions. Word has length 100 [2021-11-12 22:57:52,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:52,723 INFO L470 AbstractCegarLoop]: Abstraction has 6108 states and 8224 transitions. [2021-11-12 22:57:52,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 22:57:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8224 transitions. [2021-11-12 22:57:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 22:57:52,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:52,725 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:52,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:52,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:52,950 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-12 22:57:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:52,951 INFO L85 PathProgramCache]: Analyzing trace with hash -561025326, now seen corresponding path program 1 times [2021-11-12 22:57:52,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:52,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226688125] [2021-11-12 22:57:52,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:52,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:52,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:52,955 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:57:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:56,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:57:56,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:57:57,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:57:57,428 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:57,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226688125] [2021-11-12 22:57:57,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226688125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:57,428 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:57,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 22:57:57,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736647952] [2021-11-12 22:57:57,430 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:57,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:57:57,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:57:57,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:57:57,432 INFO L87 Difference]: Start difference. First operand 6108 states and 8224 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-12 22:57:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:57,865 INFO L93 Difference]: Finished difference Result 12179 states and 16459 transitions. [2021-11-12 22:57:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:57:57,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 121 [2021-11-12 22:57:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:57,892 INFO L225 Difference]: With dead ends: 12179 [2021-11-12 22:57:57,892 INFO L226 Difference]: Without dead ends: 6098 [2021-11-12 22:57:57,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 238 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 22:57:57,917 INFO L933 BasicCegarLoop]: 2230 mSDtfsCounter, 2175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.03ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:57,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 2230 Invalid, 16 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [15 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 18.03ms Time] [2021-11-12 22:57:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6098 states. [2021-11-12 22:57:58,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6098 to 6098. [2021-11-12 22:57:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 4360 states have (on average 1.2626146788990826) internal successors, (5505), 4483 states have internal predecessors, (5505), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-12 22:57:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 8207 transitions. [2021-11-12 22:57:58,437 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 8207 transitions. Word has length 121 [2021-11-12 22:57:58,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:58,438 INFO L470 AbstractCegarLoop]: Abstraction has 6098 states and 8207 transitions. [2021-11-12 22:57:58,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-12 22:57:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 8207 transitions. [2021-11-12 22:57:58,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-12 22:57:58,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:58,441 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:58,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:58,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:58,654 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-12 22:57:58,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:58,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1855653926, now seen corresponding path program 1 times [2021-11-12 22:57:58,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:58,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937145878] [2021-11-12 22:57:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:58,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:58,658 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:58,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:58:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:02,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:58:02,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-12 22:58:03,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-11-12 22:58:04,762 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:04,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937145878] [2021-11-12 22:58:04,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937145878] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:58:04,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:58:04,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 25 [2021-11-12 22:58:04,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958047632] [2021-11-12 22:58:04,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:04,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:58:04,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:04,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:58:04,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:58:04,765 INFO L87 Difference]: Start difference. First operand 6098 states and 8207 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2021-11-12 22:58:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:07,294 INFO L93 Difference]: Finished difference Result 6863 states and 9107 transitions. [2021-11-12 22:58:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:58:07,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 147 [2021-11-12 22:58:07,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:07,315 INFO L225 Difference]: With dead ends: 6863 [2021-11-12 22:58:07,315 INFO L226 Difference]: Without dead ends: 6140 [2021-11-12 22:58:07,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:58:07,325 INFO L933 BasicCegarLoop]: 2221 mSDtfsCounter, 44 mSDsluCounter, 26459 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1379.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 28680 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.14ms SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1482.03ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:07,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 28680 Invalid, 654 Unknown, 0 Unchecked, 31.14ms Time], IncrementalHoareTripleChecker [173 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1482.03ms Time] [2021-11-12 22:58:07,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2021-11-12 22:58:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6110. [2021-11-12 22:58:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6110 states, 4368 states have (on average 1.2621336996336996) internal successors, (5513), 4491 states have internal predecessors, (5513), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2021-11-12 22:58:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 8223 transitions. [2021-11-12 22:58:08,018 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 8223 transitions. Word has length 147 [2021-11-12 22:58:08,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:08,018 INFO L470 AbstractCegarLoop]: Abstraction has 6110 states and 8223 transitions. [2021-11-12 22:58:08,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2021-11-12 22:58:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 8223 transitions. [2021-11-12 22:58:08,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 22:58:08,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:08,021 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] [2021-11-12 22:58:08,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:08,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:08,235 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 32 more)] === [2021-11-12 22:58:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1613407075, now seen corresponding path program 1 times [2021-11-12 22:58:08,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:08,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619928758] [2021-11-12 22:58:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:08,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:08,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:08,240 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:08,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:58:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:11,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:11,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:12,226 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 22:58:12,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:12,598 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 22:58:12,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:12,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619928758] [2021-11-12 22:58:12,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619928758] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:12,598 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:12,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:58:12,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201369631] [2021-11-12 22:58:12,599 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:12,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:58:12,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:58:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:58:12,600 INFO L87 Difference]: Start difference. First operand 6110 states and 8223 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 22:58:12,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:12,958 INFO L93 Difference]: Finished difference Result 6110 states and 8223 transitions. [2021-11-12 22:58:12,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:58:12,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 106 [2021-11-12 22:58:12,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:12,979 INFO L225 Difference]: With dead ends: 6110 [2021-11-12 22:58:12,979 INFO L226 Difference]: Without dead ends: 6108 [2021-11-12 22:58:12,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 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 22:58:12,985 INFO L933 BasicCegarLoop]: 2227 mSDtfsCounter, 2136 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:12,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2138 Valid, 4452 Invalid, 2 Unknown, 0 Unchecked, 6.97ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.55ms Time] [2021-11-12 22:58:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2021-11-12 22:58:13,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 6108. [2021-11-12 22:58:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4367 states have (on average 1.2619647355163728) internal successors, (5511), 4489 states have internal predecessors, (5511), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2021-11-12 22:58:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8221 transitions. [2021-11-12 22:58:13,613 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8221 transitions. Word has length 106 [2021-11-12 22:58:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:13,614 INFO L470 AbstractCegarLoop]: Abstraction has 6108 states and 8221 transitions. [2021-11-12 22:58:13,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 22:58:13,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8221 transitions. [2021-11-12 22:58:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 22:58:13,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:13,618 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] [2021-11-12 22:58:13,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:13,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:13,837 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 32 more)] === [2021-11-12 22:58:13,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:13,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1782742789, now seen corresponding path program 1 times [2021-11-12 22:58:13,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:13,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684602638] [2021-11-12 22:58:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:13,839 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:13,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:13,840 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:13,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 22:58:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:16,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:16,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:17,536 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 22:58:17,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:17,858 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 22:58:17,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:17,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684602638] [2021-11-12 22:58:17,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684602638] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:17,859 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:17,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:58:17,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388291484] [2021-11-12 22:58:17,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:17,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:58:17,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:58:17,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:58:17,861 INFO L87 Difference]: Start difference. First operand 6108 states and 8221 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 22:58:18,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:18,193 INFO L93 Difference]: Finished difference Result 6108 states and 8221 transitions. [2021-11-12 22:58:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:58:18,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 112 [2021-11-12 22:58:18,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:18,208 INFO L225 Difference]: With dead ends: 6108 [2021-11-12 22:58:18,208 INFO L226 Difference]: Without dead ends: 6106 [2021-11-12 22:58:18,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 219 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 22:58:18,214 INFO L933 BasicCegarLoop]: 2225 mSDtfsCounter, 2125 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 6671 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:18,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2127 Valid, 6671 Invalid, 2 Unknown, 0 Unchecked, 8.42ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.40ms Time] [2021-11-12 22:58:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2021-11-12 22:58:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 6106. [2021-11-12 22:58:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 4366 states have (on average 1.2617956939990838) internal successors, (5509), 4487 states have internal predecessors, (5509), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2021-11-12 22:58:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 8219 transitions. [2021-11-12 22:58:18,848 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 8219 transitions. Word has length 112 [2021-11-12 22:58:18,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:18,848 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 8219 transitions. [2021-11-12 22:58:18,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 22:58:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 8219 transitions. [2021-11-12 22:58:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-12 22:58:18,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:18,851 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] [2021-11-12 22:58:18,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:19,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:19,075 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 32 more)] === [2021-11-12 22:58:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:19,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1350917253, now seen corresponding path program 1 times [2021-11-12 22:58:19,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:19,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67826999] [2021-11-12 22:58:19,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:19,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:19,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:19,078 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:19,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:58:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:22,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:22,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:22,946 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 22:58:22,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:23,316 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 22:58:23,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:23,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67826999] [2021-11-12 22:58:23,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67826999] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:23,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:23,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:58:23,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913986764] [2021-11-12 22:58:23,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:23,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:58:23,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:58:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:58:23,318 INFO L87 Difference]: Start difference. First operand 6106 states and 8219 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 22:58:23,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:23,662 INFO L93 Difference]: Finished difference Result 6106 states and 8219 transitions. [2021-11-12 22:58:23,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:58:23,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 118 [2021-11-12 22:58:23,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:23,677 INFO L225 Difference]: With dead ends: 6106 [2021-11-12 22:58:23,677 INFO L226 Difference]: Without dead ends: 6104 [2021-11-12 22:58:23,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 231 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 22:58:23,680 INFO L933 BasicCegarLoop]: 2223 mSDtfsCounter, 2120 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 4444 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.15ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:23,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 4444 Invalid, 2 Unknown, 0 Unchecked, 6.73ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.15ms Time] [2021-11-12 22:58:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6104 states. [2021-11-12 22:58:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6104 to 6104. [2021-11-12 22:58:24,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6104 states, 4365 states have (on average 1.2616265750286368) internal successors, (5507), 4485 states have internal predecessors, (5507), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2021-11-12 22:58:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6104 states to 6104 states and 8217 transitions. [2021-11-12 22:58:24,398 INFO L78 Accepts]: Start accepts. Automaton has 6104 states and 8217 transitions. Word has length 118 [2021-11-12 22:58:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:24,399 INFO L470 AbstractCegarLoop]: Abstraction has 6104 states and 8217 transitions. [2021-11-12 22:58:24,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 22:58:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6104 states and 8217 transitions. [2021-11-12 22:58:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-12 22:58:24,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:24,402 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] [2021-11-12 22:58:24,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:24,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:24,615 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 32 more)] === [2021-11-12 22:58:24,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2110545786, now seen corresponding path program 1 times [2021-11-12 22:58:24,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:24,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366925779] [2021-11-12 22:58:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:24,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:24,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:24,619 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:24,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:58:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:27,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:27,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:28,534 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 22:58:28,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:28,932 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 22:58:28,932 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:28,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366925779] [2021-11-12 22:58:28,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366925779] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:28,933 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:28,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:58:28,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632211816] [2021-11-12 22:58:28,933 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:28,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:58:28,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:58:28,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:58:28,934 INFO L87 Difference]: Start difference. First operand 6104 states and 8217 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 22:58:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:29,470 INFO L93 Difference]: Finished difference Result 6104 states and 8217 transitions. [2021-11-12 22:58:29,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:58:29,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 124 [2021-11-12 22:58:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:29,484 INFO L225 Difference]: With dead ends: 6104 [2021-11-12 22:58:29,484 INFO L226 Difference]: Without dead ends: 6102 [2021-11-12 22:58:29,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 243 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 22:58:29,488 INFO L933 BasicCegarLoop]: 2221 mSDtfsCounter, 2109 mSDsluCounter, 4438 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 6659 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:29,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2111 Valid, 6659 Invalid, 2 Unknown, 0 Unchecked, 12.37ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.55ms Time] [2021-11-12 22:58:29,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6102 states. [2021-11-12 22:58:29,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6102 to 6102. [2021-11-12 22:58:29,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 4364 states have (on average 1.2614573785517873) internal successors, (5505), 4483 states have internal predecessors, (5505), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2021-11-12 22:58:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 8215 transitions. [2021-11-12 22:58:30,002 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 8215 transitions. Word has length 124 [2021-11-12 22:58:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:30,003 INFO L470 AbstractCegarLoop]: Abstraction has 6102 states and 8215 transitions. [2021-11-12 22:58:30,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 22:58:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 8215 transitions. [2021-11-12 22:58:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-12 22:58:30,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:30,006 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:30,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:30,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:30,211 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 32 more)] === [2021-11-12 22:58:30,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:30,211 INFO L85 PathProgramCache]: Analyzing trace with hash -510995911, now seen corresponding path program 1 times [2021-11-12 22:58:30,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:30,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210884971] [2021-11-12 22:58:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:30,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:30,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:30,214 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:30,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 22:58:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:33,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:58:33,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-12 22:58:34,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-11-12 22:58:34,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:34,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210884971] [2021-11-12 22:58:34,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210884971] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:58:34,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:58:34,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-12 22:58:34,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10502950] [2021-11-12 22:58:34,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:34,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:58:34,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:34,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:58:34,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:58:34,608 INFO L87 Difference]: Start difference. First operand 6102 states and 8215 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 22:58:36,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:36,344 INFO L93 Difference]: Finished difference Result 7726 states and 10447 transitions. [2021-11-12 22:58:36,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:58:36,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2021-11-12 22:58:36,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:36,361 INFO L225 Difference]: With dead ends: 7726 [2021-11-12 22:58:36,361 INFO L226 Difference]: Without dead ends: 6971 [2021-11-12 22:58:36,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:58:36,366 INFO L933 BasicCegarLoop]: 2380 mSDtfsCounter, 578 mSDsluCounter, 14149 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 903.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 16529 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.71ms SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1003.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:36,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 16529 Invalid, 604 Unknown, 0 Unchecked, 24.71ms Time], IncrementalHoareTripleChecker [322 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1003.35ms Time] [2021-11-12 22:58:36,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-11-12 22:58:36,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6105. [2021-11-12 22:58:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 4367 states have (on average 1.2612777650561027) internal successors, (5508), 4486 states have internal predecessors, (5508), 1344 states have call successors, (1344), 375 states have call predecessors, (1344), 374 states have return successors, (1366), 1323 states have call predecessors, (1366), 1342 states have call successors, (1366) [2021-11-12 22:58:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 8218 transitions. [2021-11-12 22:58:36,832 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 8218 transitions. Word has length 168 [2021-11-12 22:58:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:36,832 INFO L470 AbstractCegarLoop]: Abstraction has 6105 states and 8218 transitions. [2021-11-12 22:58:36,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 22:58:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 8218 transitions. [2021-11-12 22:58:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-12 22:58:36,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:36,836 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:36,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:37,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:37,047 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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 32 more)] === [2021-11-12 22:58:37,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash -22258546, now seen corresponding path program 1 times [2021-11-12 22:58:37,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:37,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047848397] [2021-11-12 22:58:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:37,049 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:37,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:37,050 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:37,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 22:58:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:40,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:58:40,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 22:58:41,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-12 22:58:42,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:42,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047848397] [2021-11-12 22:58:42,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047848397] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:58:42,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2076820190] [2021-11-12 22:58:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:42,738 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:42,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:58:42,739 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:58:42,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-12 22:58:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:46,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-12 22:58:46,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 22:58:46,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-11-12 22:58:47,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2076820190] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:58:47,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:58:47,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 18, 15] total 21 [2021-11-12 22:58:47,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569312205] [2021-11-12 22:58:47,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:47,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:58:47,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:47,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:58:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:58:47,458 INFO L87 Difference]: Start difference. First operand 6105 states and 8218 transitions. Second operand has 15 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 7 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-12 22:58:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:50,810 INFO L93 Difference]: Finished difference Result 7544 states and 9975 transitions. [2021-11-12 22:58:50,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 22:58:50,810 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 7 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 173 [2021-11-12 22:58:50,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:50,824 INFO L225 Difference]: With dead ends: 7544 [2021-11-12 22:58:50,825 INFO L226 Difference]: Without dead ends: 6218 [2021-11-12 22:58:50,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=199, Invalid=1061, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 22:58:50,835 INFO L933 BasicCegarLoop]: 2262 mSDtfsCounter, 54 mSDsluCounter, 28991 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1618.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 31253 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.01ms SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1737.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:50,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 31253 Invalid, 951 Unknown, 0 Unchecked, 27.01ms Time], IncrementalHoareTripleChecker [358 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1737.62ms Time] [2021-11-12 22:58:50,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2021-11-12 22:58:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 6141. [2021-11-12 22:58:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6141 states, 4391 states have (on average 1.2598496925529492) internal successors, (5532), 4510 states have internal predecessors, (5532), 1356 states have call successors, (1356), 375 states have call predecessors, (1356), 374 states have return successors, (1378), 1335 states have call predecessors, (1378), 1354 states have call successors, (1378) [2021-11-12 22:58:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6141 states to 6141 states and 8266 transitions. [2021-11-12 22:58:51,366 INFO L78 Accepts]: Start accepts. Automaton has 6141 states and 8266 transitions. Word has length 173 [2021-11-12 22:58:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:51,366 INFO L470 AbstractCegarLoop]: Abstraction has 6141 states and 8266 transitions. [2021-11-12 22:58:51,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 7 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-12 22:58:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6141 states and 8266 transitions. [2021-11-12 22:58:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 22:58:51,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:51,368 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] [2021-11-12 22:58:51,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:51,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:51,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:51,788 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 32 more)] === [2021-11-12 22:58:51,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:51,789 INFO L85 PathProgramCache]: Analyzing trace with hash -918574393, now seen corresponding path program 1 times [2021-11-12 22:58:51,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:51,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309762728] [2021-11-12 22:58:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:51,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:51,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:51,791 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:51,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 22:58:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:54,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:54,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:55,890 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 22:58:55,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:56,666 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 22:58:56,667 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:56,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309762728] [2021-11-12 22:58:56,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309762728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:56,667 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:56,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 22:58:56,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866485527] [2021-11-12 22:58:56,668 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:56,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:58:56,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:56,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:58:56,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:58:56,669 INFO L87 Difference]: Start difference. First operand 6141 states and 8266 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 22:58:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:58,422 INFO L93 Difference]: Finished difference Result 6141 states and 8266 transitions. [2021-11-12 22:58:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:58:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 130 [2021-11-12 22:58:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:58,440 INFO L225 Difference]: With dead ends: 6141 [2021-11-12 22:58:58,440 INFO L226 Difference]: Without dead ends: 6139 [2021-11-12 22:58:58,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 254 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 22:58:58,443 INFO L933 BasicCegarLoop]: 2219 mSDtfsCounter, 3570 mSDsluCounter, 4434 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 980.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 6653 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.16ms SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1242.52ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:58,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3572 Valid, 6653 Invalid, 720 Unknown, 0 Unchecked, 15.16ms Time], IncrementalHoareTripleChecker [718 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1242.52ms Time] [2021-11-12 22:58:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-11-12 22:58:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6139. [2021-11-12 22:58:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 4390 states have (on average 1.2596810933940774) internal successors, (5530), 4508 states have internal predecessors, (5530), 1356 states have call successors, (1356), 375 states have call predecessors, (1356), 374 states have return successors, (1378), 1335 states have call predecessors, (1378), 1354 states have call successors, (1378) [2021-11-12 22:58:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 8264 transitions. [2021-11-12 22:58:58,972 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 8264 transitions. Word has length 130 [2021-11-12 22:58:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:58,972 INFO L470 AbstractCegarLoop]: Abstraction has 6139 states and 8264 transitions. [2021-11-12 22:58:58,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 22:58:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 8264 transitions. [2021-11-12 22:58:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 22:58:58,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:58,976 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:59,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-11-12 22:58:59,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:59,191 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 32 more)] === [2021-11-12 22:58:59,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash -412285246, now seen corresponding path program 1 times [2021-11-12 22:58:59,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:59,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303825267] [2021-11-12 22:58:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:59,194 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:59,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:59,195 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:59,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 22:59:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:02,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:59:02,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:03,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:03,951 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:03,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303825267] [2021-11-12 22:59:03,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303825267] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:03,952 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:03,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-12 22:59:03,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589599720] [2021-11-12 22:59:03,952 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:03,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:59:03,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:03,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:59:03,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:59:03,954 INFO L87 Difference]: Start difference. First operand 6139 states and 8264 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-12 22:59:05,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:05,655 INFO L93 Difference]: Finished difference Result 14684 states and 20191 transitions. [2021-11-12 22:59:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:59:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2021-11-12 22:59:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:05,679 INFO L225 Difference]: With dead ends: 14684 [2021-11-12 22:59:05,679 INFO L226 Difference]: Without dead ends: 8575 [2021-11-12 22:59:05,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:59:05,696 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 582 mSDsluCounter, 11676 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 732.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 14802 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 800.92ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:05,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 14802 Invalid, 341 Unknown, 0 Unchecked, 21.59ms Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 116 Unchecked, 800.92ms Time] [2021-11-12 22:59:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2021-11-12 22:59:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 6139. [2021-11-12 22:59:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 4390 states have (on average 1.2587699316628702) internal successors, (5526), 4508 states have internal predecessors, (5526), 1356 states have call successors, (1356), 375 states have call predecessors, (1356), 374 states have return successors, (1378), 1335 states have call predecessors, (1378), 1354 states have call successors, (1378) [2021-11-12 22:59:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 8260 transitions. [2021-11-12 22:59:06,386 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 8260 transitions. Word has length 161 [2021-11-12 22:59:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:06,386 INFO L470 AbstractCegarLoop]: Abstraction has 6139 states and 8260 transitions. [2021-11-12 22:59:06,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-12 22:59:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 8260 transitions. [2021-11-12 22:59:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 22:59:06,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:06,388 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:06,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:06,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:06,589 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-12 22:59:06,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:06,589 INFO L85 PathProgramCache]: Analyzing trace with hash 288779332, now seen corresponding path program 1 times [2021-11-12 22:59:06,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:06,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753935694] [2021-11-12 22:59:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:06,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:06,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:06,592 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:06,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 22:59:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:10,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:59:10,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:11,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:11,810 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:11,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753935694] [2021-11-12 22:59:11,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753935694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:11,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:11,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:59:11,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148657209] [2021-11-12 22:59:11,811 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:11,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:59:11,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:59:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:59:11,812 INFO L87 Difference]: Start difference. First operand 6139 states and 8260 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:59:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:12,380 INFO L93 Difference]: Finished difference Result 6507 states and 8634 transitions. [2021-11-12 22:59:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:59:12,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 161 [2021-11-12 22:59:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:12,396 INFO L225 Difference]: With dead ends: 6507 [2021-11-12 22:59:12,396 INFO L226 Difference]: Without dead ends: 6505 [2021-11-12 22:59:12,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:12,403 INFO L933 BasicCegarLoop]: 2239 mSDtfsCounter, 1606 mSDsluCounter, 5090 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.38ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:12,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 7329 Invalid, 13 Unknown, 0 Unchecked, 10.94ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 34.38ms Time] [2021-11-12 22:59:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6505 states. [2021-11-12 22:59:13,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6505 to 6503. [2021-11-12 22:59:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 4642 states have (on average 1.2542007755277897) internal successors, (5822), 4760 states have internal predecessors, (5822), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2021-11-12 22:59:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 8628 transitions. [2021-11-12 22:59:13,024 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 8628 transitions. Word has length 161 [2021-11-12 22:59:13,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:13,024 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 8628 transitions. [2021-11-12 22:59:13,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:59:13,024 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 8628 transitions. [2021-11-12 22:59:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-12 22:59:13,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:13,026 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] [2021-11-12 22:59:13,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:13,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:13,231 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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 32 more)] === [2021-11-12 22:59:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:13,231 INFO L85 PathProgramCache]: Analyzing trace with hash 986839772, now seen corresponding path program 1 times [2021-11-12 22:59:13,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:13,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155566847] [2021-11-12 22:59:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:13,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:13,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:13,234 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:13,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:59:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:16,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:16,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:17,160 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 22:59:17,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:17,549 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 22:59:17,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:17,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155566847] [2021-11-12 22:59:17,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155566847] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:17,549 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:17,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:59:17,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739282103] [2021-11-12 22:59:17,550 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:17,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:59:17,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:59:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:59:17,551 INFO L87 Difference]: Start difference. First operand 6503 states and 8628 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 22:59:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:18,321 INFO L93 Difference]: Finished difference Result 6503 states and 8628 transitions. [2021-11-12 22:59:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 136 [2021-11-12 22:59:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:18,339 INFO L225 Difference]: With dead ends: 6503 [2021-11-12 22:59:18,339 INFO L226 Difference]: Without dead ends: 6501 [2021-11-12 22:59:18,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 266 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 22:59:18,348 INFO L933 BasicCegarLoop]: 2216 mSDtfsCounter, 2092 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:18,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 6644 Invalid, 2 Unknown, 0 Unchecked, 12.85ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.27ms Time] [2021-11-12 22:59:18,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6501 states. [2021-11-12 22:59:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6501 to 6501. [2021-11-12 22:59:18,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6501 states, 4641 states have (on average 1.2540400775694893) internal successors, (5820), 4758 states have internal predecessors, (5820), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2021-11-12 22:59:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6501 states to 6501 states and 8626 transitions. [2021-11-12 22:59:18,873 INFO L78 Accepts]: Start accepts. Automaton has 6501 states and 8626 transitions. Word has length 136 [2021-11-12 22:59:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:18,873 INFO L470 AbstractCegarLoop]: Abstraction has 6501 states and 8626 transitions. [2021-11-12 22:59:18,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 22:59:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6501 states and 8626 transitions. [2021-11-12 22:59:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-12 22:59:18,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:18,875 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] [2021-11-12 22:59:18,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:19,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:19,078 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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 32 more)] === [2021-11-12 22:59:19,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash -965099567, now seen corresponding path program 1 times [2021-11-12 22:59:19,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:19,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269295146] [2021-11-12 22:59:19,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:19,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:19,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:19,083 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:19,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-12 22:59:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:22,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:22,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:23,041 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 22:59:23,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:23,435 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 22:59:23,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:23,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269295146] [2021-11-12 22:59:23,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269295146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:23,435 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:23,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:59:23,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683955764] [2021-11-12 22:59:23,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:23,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:59:23,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:23,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:59:23,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:59:23,437 INFO L87 Difference]: Start difference. First operand 6501 states and 8626 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 22:59:23,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:23,965 INFO L93 Difference]: Finished difference Result 6501 states and 8626 transitions. [2021-11-12 22:59:23,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:23,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 142 [2021-11-12 22:59:23,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:23,980 INFO L225 Difference]: With dead ends: 6501 [2021-11-12 22:59:23,980 INFO L226 Difference]: Without dead ends: 6499 [2021-11-12 22:59:23,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 279 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 22:59:23,983 INFO L933 BasicCegarLoop]: 2214 mSDtfsCounter, 2087 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.98ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:23,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 4426 Invalid, 2 Unknown, 0 Unchecked, 6.70ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.98ms Time] [2021-11-12 22:59:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2021-11-12 22:59:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 6499. [2021-11-12 22:59:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6499 states, 4640 states have (on average 1.2538793103448276) internal successors, (5818), 4756 states have internal predecessors, (5818), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2021-11-12 22:59:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6499 states to 6499 states and 8624 transitions. [2021-11-12 22:59:24,565 INFO L78 Accepts]: Start accepts. Automaton has 6499 states and 8624 transitions. Word has length 142 [2021-11-12 22:59:24,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:24,566 INFO L470 AbstractCegarLoop]: Abstraction has 6499 states and 8624 transitions. [2021-11-12 22:59:24,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 22:59:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 6499 states and 8624 transitions. [2021-11-12 22:59:24,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-12 22:59:24,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:24,568 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:24,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:24,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:24,768 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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 32 more)] === [2021-11-12 22:59:24,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1206055100, now seen corresponding path program 1 times [2021-11-12 22:59:24,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:24,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478861733] [2021-11-12 22:59:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:24,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:24,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:24,772 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:24,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 22:59:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:28,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1560 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:59:28,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:28,744 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:28,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:29,429 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:29,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478861733] [2021-11-12 22:59:29,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478861733] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:29,429 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:29,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-12 22:59:29,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775338984] [2021-11-12 22:59:29,430 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:29,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:59:29,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:29,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:59:29,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:59:29,431 INFO L87 Difference]: Start difference. First operand 6499 states and 8624 transitions. Second operand has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-12 22:59:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:31,280 INFO L93 Difference]: Finished difference Result 13544 states and 18085 transitions. [2021-11-12 22:59:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:59:31,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 168 [2021-11-12 22:59:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:31,302 INFO L225 Difference]: With dead ends: 13544 [2021-11-12 22:59:31,302 INFO L226 Difference]: Without dead ends: 7075 [2021-11-12 22:59:31,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:59:31,320 INFO L933 BasicCegarLoop]: 2619 mSDtfsCounter, 581 mSDsluCounter, 12223 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 874.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 14842 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 955.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:31,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 14842 Invalid, 401 Unknown, 0 Unchecked, 19.15ms Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 102 Unchecked, 955.34ms Time] [2021-11-12 22:59:31,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7075 states. [2021-11-12 22:59:31,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7075 to 6499. [2021-11-12 22:59:31,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6499 states, 4640 states have (on average 1.2530172413793104) internal successors, (5814), 4756 states have internal predecessors, (5814), 1392 states have call successors, (1392), 451 states have call predecessors, (1392), 450 states have return successors, (1414), 1371 states have call predecessors, (1414), 1390 states have call successors, (1414) [2021-11-12 22:59:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6499 states to 6499 states and 8620 transitions. [2021-11-12 22:59:31,853 INFO L78 Accepts]: Start accepts. Automaton has 6499 states and 8620 transitions. Word has length 168 [2021-11-12 22:59:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:31,854 INFO L470 AbstractCegarLoop]: Abstraction has 6499 states and 8620 transitions. [2021-11-12 22:59:31,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-12 22:59:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6499 states and 8620 transitions. [2021-11-12 22:59:31,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-12 22:59:31,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:31,857 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:31,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:32,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:32,058 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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 32 more)] === [2021-11-12 22:59:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1500564294, now seen corresponding path program 1 times [2021-11-12 22:59:32,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:32,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602799993] [2021-11-12 22:59:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:32,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:32,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:32,062 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:32,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 22:59:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:35,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1560 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:59:35,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:36,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:37,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:37,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602799993] [2021-11-12 22:59:37,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602799993] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:37,161 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:37,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:59:37,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93995894] [2021-11-12 22:59:37,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:37,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:59:37,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:37,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:59:37,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:59:37,163 INFO L87 Difference]: Start difference. First operand 6499 states and 8620 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:59:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:37,808 INFO L93 Difference]: Finished difference Result 6992 states and 9127 transitions. [2021-11-12 22:59:37,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:59:37,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 168 [2021-11-12 22:59:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:37,830 INFO L225 Difference]: With dead ends: 6992 [2021-11-12 22:59:37,830 INFO L226 Difference]: Without dead ends: 6990 [2021-11-12 22:59:37,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:37,836 INFO L933 BasicCegarLoop]: 2247 mSDtfsCounter, 2069 mSDsluCounter, 6937 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 9184 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.29ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.31ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:37,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2072 Valid, 9184 Invalid, 18 Unknown, 0 Unchecked, 11.29ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 40.31ms Time] [2021-11-12 22:59:37,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2021-11-12 22:59:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 6900. [2021-11-12 22:59:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 4897 states have (on average 1.244435368593016) internal successors, (6094), 5016 states have internal predecessors, (6094), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2021-11-12 22:59:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 9036 transitions. [2021-11-12 22:59:38,449 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 9036 transitions. Word has length 168 [2021-11-12 22:59:38,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:38,449 INFO L470 AbstractCegarLoop]: Abstraction has 6900 states and 9036 transitions. [2021-11-12 22:59:38,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:59:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 9036 transitions. [2021-11-12 22:59:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-12 22:59:38,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:38,451 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] [2021-11-12 22:59:38,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:38,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:38,652 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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 32 more)] === [2021-11-12 22:59:38,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1796441848, now seen corresponding path program 1 times [2021-11-12 22:59:38,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:38,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905470587] [2021-11-12 22:59:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:38,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:38,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:38,655 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:38,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 22:59:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:41,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:41,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:42,663 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 22:59:42,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:43,074 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 22:59:43,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:43,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905470587] [2021-11-12 22:59:43,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905470587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:43,075 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:43,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:59:43,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979408664] [2021-11-12 22:59:43,075 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:43,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:59:43,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:43,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:59:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:59:43,076 INFO L87 Difference]: Start difference. First operand 6900 states and 9036 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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 22:59:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:43,671 INFO L93 Difference]: Finished difference Result 6900 states and 9036 transitions. [2021-11-12 22:59:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:43,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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 148 [2021-11-12 22:59:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:43,689 INFO L225 Difference]: With dead ends: 6900 [2021-11-12 22:59:43,689 INFO L226 Difference]: Without dead ends: 6898 [2021-11-12 22:59:43,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 291 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 22:59:43,692 INFO L933 BasicCegarLoop]: 2211 mSDtfsCounter, 2078 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:43,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2080 Valid, 4420 Invalid, 2 Unknown, 0 Unchecked, 7.00ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.94ms Time] [2021-11-12 22:59:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6898 states. [2021-11-12 22:59:44,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6898 to 6898. [2021-11-12 22:59:44,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6898 states, 4896 states have (on average 1.244281045751634) internal successors, (6092), 5014 states have internal predecessors, (6092), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2021-11-12 22:59:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6898 states to 6898 states and 9034 transitions. [2021-11-12 22:59:44,334 INFO L78 Accepts]: Start accepts. Automaton has 6898 states and 9034 transitions. Word has length 148 [2021-11-12 22:59:44,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:44,335 INFO L470 AbstractCegarLoop]: Abstraction has 6898 states and 9034 transitions. [2021-11-12 22:59:44,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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 22:59:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6898 states and 9034 transitions. [2021-11-12 22:59:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-12 22:59:44,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:44,338 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] [2021-11-12 22:59:44,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:44,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:44,559 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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 32 more)] === [2021-11-12 22:59:44,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:44,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1238573022, now seen corresponding path program 1 times [2021-11-12 22:59:44,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:44,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161657806] [2021-11-12 22:59:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:44,561 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:44,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:44,562 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:44,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-12 22:59:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:47,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:47,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:48,511 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 22:59:48,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:48,919 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 22:59:48,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:48,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161657806] [2021-11-12 22:59:48,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161657806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:48,919 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:48,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:59:48,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117878032] [2021-11-12 22:59:48,920 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:59:48,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:59:48,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:59:48,921 INFO L87 Difference]: Start difference. First operand 6898 states and 9034 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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 22:59:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:49,469 INFO L93 Difference]: Finished difference Result 6898 states and 9034 transitions. [2021-11-12 22:59:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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 154 [2021-11-12 22:59:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:49,537 INFO L225 Difference]: With dead ends: 6898 [2021-11-12 22:59:49,537 INFO L226 Difference]: Without dead ends: 6896 [2021-11-12 22:59:49,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 303 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 22:59:49,539 INFO L933 BasicCegarLoop]: 2209 mSDtfsCounter, 2070 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.76ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:49,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2072 Valid, 4416 Invalid, 2 Unknown, 0 Unchecked, 6.21ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.76ms Time] [2021-11-12 22:59:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6896 states. [2021-11-12 22:59:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6896 to 6896. [2021-11-12 22:59:50,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 4895 states have (on average 1.2441266598569969) internal successors, (6090), 5012 states have internal predecessors, (6090), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2021-11-12 22:59:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 9032 transitions. [2021-11-12 22:59:50,109 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 9032 transitions. Word has length 154 [2021-11-12 22:59:50,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:50,109 INFO L470 AbstractCegarLoop]: Abstraction has 6896 states and 9032 transitions. [2021-11-12 22:59:50,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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 22:59:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 9032 transitions. [2021-11-12 22:59:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-12 22:59:50,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:50,112 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:50,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:50,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:50,326 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 32 more)] === [2021-11-12 22:59:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 986633813, now seen corresponding path program 1 times [2021-11-12 22:59:50,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:50,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866010260] [2021-11-12 22:59:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:50,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:50,330 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:50,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-12 22:59:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:53,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:59:53,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:54,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:59:54,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:54,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866010260] [2021-11-12 22:59:54,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866010260] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:54,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:54,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:59:54,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801850783] [2021-11-12 22:59:54,474 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:54,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:59:54,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:54,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:59:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:59:54,476 INFO L87 Difference]: Start difference. First operand 6896 states and 9032 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-12 22:59:56,633 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 22:59:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:57,470 INFO L93 Difference]: Finished difference Result 6908 states and 9038 transitions. [2021-11-12 22:59:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:59:57,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) Word has length 180 [2021-11-12 22:59:57,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:57,486 INFO L225 Difference]: With dead ends: 6908 [2021-11-12 22:59:57,486 INFO L226 Difference]: Without dead ends: 6906 [2021-11-12 22:59:57,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:57,490 INFO L933 BasicCegarLoop]: 2355 mSDtfsCounter, 325 mSDsluCounter, 9223 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 70 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2257.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 11578 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.11ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2335.01ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:57,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 11578 Invalid, 86 Unknown, 0 Unchecked, 11.11ms Time], IncrementalHoareTripleChecker [70 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2335.01ms Time] [2021-11-12 22:59:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6906 states. [2021-11-12 22:59:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6906 to 6896. [2021-11-12 22:59:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 4895 states have (on average 1.2433094994892748) internal successors, (6086), 5012 states have internal predecessors, (6086), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2021-11-12 22:59:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 9028 transitions. [2021-11-12 22:59:58,141 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 9028 transitions. Word has length 180 [2021-11-12 22:59:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:58,142 INFO L470 AbstractCegarLoop]: Abstraction has 6896 states and 9028 transitions. [2021-11-12 22:59:58,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-12 22:59:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 9028 transitions. [2021-11-12 22:59:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-12 22:59:58,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:58,144 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] [2021-11-12 22:59:58,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:58,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:58,347 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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 32 more)] === [2021-11-12 22:59:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 883056991, now seen corresponding path program 1 times [2021-11-12 22:59:58,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:58,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20579032] [2021-11-12 22:59:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:58,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:58,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:58,352 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:58,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-12 23:00:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:01,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:00:01,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:02,513 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 23:00:02,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:02,983 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 23:00:02,983 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:02,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20579032] [2021-11-12 23:00:02,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20579032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:02,983 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:02,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:00:02,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790933287] [2021-11-12 23:00:02,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:02,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:00:02,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:00:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:00:02,984 INFO L87 Difference]: Start difference. First operand 6896 states and 9028 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 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 23:00:03,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:03,623 INFO L93 Difference]: Finished difference Result 6896 states and 9028 transitions. [2021-11-12 23:00:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:03,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 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 160 [2021-11-12 23:00:03,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:03,638 INFO L225 Difference]: With dead ends: 6896 [2021-11-12 23:00:03,638 INFO L226 Difference]: Without dead ends: 6894 [2021-11-12 23:00:03,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 315 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 23:00:03,642 INFO L933 BasicCegarLoop]: 2207 mSDtfsCounter, 2062 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.36ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:03,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2064 Valid, 4412 Invalid, 2 Unknown, 0 Unchecked, 7.33ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.36ms Time] [2021-11-12 23:00:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2021-11-12 23:00:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 6894. [2021-11-12 23:00:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6894 states, 4894 states have (on average 1.2431548835308541) internal successors, (6084), 5010 states have internal predecessors, (6084), 1460 states have call successors, (1460), 527 states have call predecessors, (1460), 526 states have return successors, (1482), 1436 states have call predecessors, (1482), 1458 states have call successors, (1482) [2021-11-12 23:00:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6894 states to 6894 states and 9026 transitions. [2021-11-12 23:00:04,316 INFO L78 Accepts]: Start accepts. Automaton has 6894 states and 9026 transitions. Word has length 160 [2021-11-12 23:00:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:04,316 INFO L470 AbstractCegarLoop]: Abstraction has 6894 states and 9026 transitions. [2021-11-12 23:00:04,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 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 23:00:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6894 states and 9026 transitions. [2021-11-12 23:00:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-12 23:00:04,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:04,319 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] [2021-11-12 23:00:04,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:04,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:04,519 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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 32 more)] === [2021-11-12 23:00:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1353205139, now seen corresponding path program 1 times [2021-11-12 23:00:04,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:04,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717746136] [2021-11-12 23:00:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:04,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:04,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:04,523 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:04,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-12 23:00:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:07,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:00:07,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:08,570 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 23:00:08,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:09,028 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 23:00:09,028 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:09,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717746136] [2021-11-12 23:00:09,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717746136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:09,028 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:09,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:00:09,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097640438] [2021-11-12 23:00:09,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:09,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:00:09,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:09,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:00:09,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:00:09,030 INFO L87 Difference]: Start difference. First operand 6894 states and 9026 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 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 23:00:09,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:09,695 INFO L93 Difference]: Finished difference Result 6894 states and 9026 transitions. [2021-11-12 23:00:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:09,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 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 166 [2021-11-12 23:00:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:09,707 INFO L225 Difference]: With dead ends: 6894 [2021-11-12 23:00:09,707 INFO L226 Difference]: Without dead ends: 6708 [2021-11-12 23:00:09,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 327 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 23:00:09,709 INFO L933 BasicCegarLoop]: 2206 mSDtfsCounter, 2050 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 6618 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.96ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:09,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 6618 Invalid, 1 Unknown, 0 Unchecked, 8.96ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.61ms Time] [2021-11-12 23:00:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2021-11-12 23:00:10,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6708. [2021-11-12 23:00:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6708 states, 4783 states have (on average 1.2467070876019235) internal successors, (5963), 4895 states have internal predecessors, (5963), 1408 states have call successors, (1408), 506 states have call predecessors, (1408), 504 states have return successors, (1428), 1386 states have call predecessors, (1428), 1404 states have call successors, (1428) [2021-11-12 23:00:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6708 states to 6708 states and 8799 transitions. [2021-11-12 23:00:10,351 INFO L78 Accepts]: Start accepts. Automaton has 6708 states and 8799 transitions. Word has length 166 [2021-11-12 23:00:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:10,351 INFO L470 AbstractCegarLoop]: Abstraction has 6708 states and 8799 transitions. [2021-11-12 23:00:10,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 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 23:00:10,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6708 states and 8799 transitions. [2021-11-12 23:00:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-12 23:00:10,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:10,353 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-12 23:00:10,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:10,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:10,554 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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 32 more)] === [2021-11-12 23:00:10,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:10,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1055015745, now seen corresponding path program 1 times [2021-11-12 23:00:10,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:10,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487292770] [2021-11-12 23:00:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:10,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:10,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:10,557 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:10,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-12 23:00:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:14,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:00:14,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 23:00:14,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:14,761 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 23:00:14,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:14,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487292770] [2021-11-12 23:00:14,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487292770] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:14,762 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:14,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:00:14,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638488991] [2021-11-12 23:00:14,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:14,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:00:14,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:14,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:00:14,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:00:14,763 INFO L87 Difference]: Start difference. First operand 6708 states and 8799 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-12 23:00:16,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:16,804 INFO L93 Difference]: Finished difference Result 18033 states and 24537 transitions. [2021-11-12 23:00:16,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:16,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 194 [2021-11-12 23:00:16,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:16,829 INFO L225 Difference]: With dead ends: 18033 [2021-11-12 23:00:16,829 INFO L226 Difference]: Without dead ends: 11350 [2021-11-12 23:00:16,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 384 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 23:00:16,841 INFO L933 BasicCegarLoop]: 3089 mSDtfsCounter, 1134 mSDsluCounter, 4964 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 721.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 8053 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 820.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:16,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 8053 Invalid, 164 Unknown, 0 Unchecked, 11.25ms Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 820.91ms Time] [2021-11-12 23:00:16,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11350 states. [2021-11-12 23:00:17,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11350 to 6724. [2021-11-12 23:00:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6724 states, 4795 states have (on average 1.246089676746611) internal successors, (5975), 4907 states have internal predecessors, (5975), 1412 states have call successors, (1412), 506 states have call predecessors, (1412), 504 states have return successors, (1432), 1390 states have call predecessors, (1432), 1408 states have call successors, (1432) [2021-11-12 23:00:17,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 8819 transitions. [2021-11-12 23:00:17,620 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 8819 transitions. Word has length 194 [2021-11-12 23:00:17,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:17,620 INFO L470 AbstractCegarLoop]: Abstraction has 6724 states and 8819 transitions. [2021-11-12 23:00:17,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-12 23:00:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 8819 transitions. [2021-11-12 23:00:17,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-12 23:00:17,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:17,623 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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] [2021-11-12 23:00:17,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:17,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:17,824 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 32 more)] === [2021-11-12 23:00:17,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:17,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1114106794, now seen corresponding path program 1 times [2021-11-12 23:00:17,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:17,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830006563] [2021-11-12 23:00:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:17,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:17,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:17,827 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:17,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-12 23:00:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:21,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:00:21,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-11-12 23:00:22,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-11-12 23:00:23,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:23,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830006563] [2021-11-12 23:00:23,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830006563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:23,281 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:23,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:00:23,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429859465] [2021-11-12 23:00:23,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:23,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:00:23,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:23,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:00:23,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:00:23,282 INFO L87 Difference]: Start difference. First operand 6724 states and 8819 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 23:00:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:24,286 INFO L93 Difference]: Finished difference Result 7303 states and 9394 transitions. [2021-11-12 23:00:24,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:00:24,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 252 [2021-11-12 23:00:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:24,301 INFO L225 Difference]: With dead ends: 7303 [2021-11-12 23:00:24,302 INFO L226 Difference]: Without dead ends: 7301 [2021-11-12 23:00:24,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:00:24,305 INFO L933 BasicCegarLoop]: 2090 mSDtfsCounter, 1890 mSDsluCounter, 4408 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 6498 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.64ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:24,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1893 Valid, 6498 Invalid, 15 Unknown, 0 Unchecked, 11.64ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 34.98ms Time] [2021-11-12 23:00:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2021-11-12 23:00:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 7092. [2021-11-12 23:00:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7092 states, 5039 states have (on average 1.2379440365151815) internal successors, (6238), 5152 states have internal predecessors, (6238), 1460 states have call successors, (1460), 582 states have call predecessors, (1460), 580 states have return successors, (1480), 1437 states have call predecessors, (1480), 1456 states have call successors, (1480) [2021-11-12 23:00:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7092 states to 7092 states and 9178 transitions. [2021-11-12 23:00:25,036 INFO L78 Accepts]: Start accepts. Automaton has 7092 states and 9178 transitions. Word has length 252 [2021-11-12 23:00:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:25,037 INFO L470 AbstractCegarLoop]: Abstraction has 7092 states and 9178 transitions. [2021-11-12 23:00:25,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 23:00:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 7092 states and 9178 transitions. [2021-11-12 23:00:25,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-12 23:00:25,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:25,040 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:25,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:25,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:25,263 INFO L402 AbstractCegarLoop]: === Iteration 36 === 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 32 more)] === [2021-11-12 23:00:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:25,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1162673530, now seen corresponding path program 1 times [2021-11-12 23:00:25,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:25,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485028491] [2021-11-12 23:00:25,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:25,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:25,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:25,266 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:25,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-12 23:00:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:28,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:00:28,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-12 23:00:29,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-12 23:00:29,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:29,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485028491] [2021-11-12 23:00:29,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485028491] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:29,432 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:29,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:00:29,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158024660] [2021-11-12 23:00:29,432 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:29,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:00:29,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:29,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:00:29,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:00:29,433 INFO L87 Difference]: Start difference. First operand 7092 states and 9178 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 23:00:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:30,431 INFO L93 Difference]: Finished difference Result 14283 states and 18539 transitions. [2021-11-12 23:00:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 210 [2021-11-12 23:00:30,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:30,445 INFO L225 Difference]: With dead ends: 14283 [2021-11-12 23:00:30,445 INFO L226 Difference]: Without dead ends: 7216 [2021-11-12 23:00:30,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 416 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 23:00:30,456 INFO L933 BasicCegarLoop]: 2059 mSDtfsCounter, 52 mSDsluCounter, 4061 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 6120 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:30,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 6120 Invalid, 40 Unknown, 0 Unchecked, 5.80ms Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 266.11ms Time] [2021-11-12 23:00:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7216 states. [2021-11-12 23:00:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7216 to 7216. [2021-11-12 23:00:31,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7216 states, 5127 states have (on average 1.2385410571484299) internal successors, (6350), 5240 states have internal predecessors, (6350), 1496 states have call successors, (1496), 582 states have call predecessors, (1496), 580 states have return successors, (1516), 1473 states have call predecessors, (1516), 1492 states have call successors, (1516) [2021-11-12 23:00:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7216 states to 7216 states and 9362 transitions. [2021-11-12 23:00:31,220 INFO L78 Accepts]: Start accepts. Automaton has 7216 states and 9362 transitions. Word has length 210 [2021-11-12 23:00:31,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:31,220 INFO L470 AbstractCegarLoop]: Abstraction has 7216 states and 9362 transitions. [2021-11-12 23:00:31,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 23:00:31,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7216 states and 9362 transitions. [2021-11-12 23:00:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-12 23:00:31,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:31,222 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-12 23:00:31,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:31,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:31,423 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 32 more)] === [2021-11-12 23:00:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1794722598, now seen corresponding path program 1 times [2021-11-12 23:00:31,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:31,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876763876] [2021-11-12 23:00:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:31,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:31,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:31,427 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:31,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-12 23:00:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:34,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:00:34,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-12 23:00:35,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-12 23:00:36,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:36,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876763876] [2021-11-12 23:00:36,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876763876] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:36,450 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:36,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:00:36,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456393357] [2021-11-12 23:00:36,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:36,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:00:36,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:36,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:00:36,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:00:36,452 INFO L87 Difference]: Start difference. First operand 7216 states and 9362 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (29), 7 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-12 23:00:38,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:38,913 INFO L93 Difference]: Finished difference Result 19109 states and 25847 transitions. [2021-11-12 23:00:38,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:00:38,914 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (29), 7 states have call predecessors, (29), 3 states have call successors, (29) Word has length 210 [2021-11-12 23:00:38,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:38,938 INFO L225 Difference]: With dead ends: 19109 [2021-11-12 23:00:38,939 INFO L226 Difference]: Without dead ends: 11918 [2021-11-12 23:00:38,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:00:38,954 INFO L933 BasicCegarLoop]: 3085 mSDtfsCounter, 1137 mSDsluCounter, 17296 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 785.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 20381 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.77ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 893.13ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:38,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1465 Valid, 20381 Invalid, 185 Unknown, 0 Unchecked, 24.77ms Time], IncrementalHoareTripleChecker [2 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 893.13ms Time] [2021-11-12 23:00:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11918 states. [2021-11-12 23:00:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11918 to 7240. [2021-11-12 23:00:39,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 5143 states have (on average 1.237798950029166) internal successors, (6366), 5256 states have internal predecessors, (6366), 1496 states have call successors, (1496), 582 states have call predecessors, (1496), 588 states have return successors, (1528), 1481 states have call predecessors, (1528), 1492 states have call successors, (1528) [2021-11-12 23:00:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 9390 transitions. [2021-11-12 23:00:39,861 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 9390 transitions. Word has length 210 [2021-11-12 23:00:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:39,862 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 9390 transitions. [2021-11-12 23:00:39,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (29), 7 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-12 23:00:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 9390 transitions. [2021-11-12 23:00:39,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-12 23:00:39,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:39,866 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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] [2021-11-12 23:00:39,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-11-12 23:00:40,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:40,086 INFO L402 AbstractCegarLoop]: === Iteration 38 === 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 32 more)] === [2021-11-12 23:00:40,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1788680456, now seen corresponding path program 1 times [2021-11-12 23:00:40,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:40,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503775378] [2021-11-12 23:00:40,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:40,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:40,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:40,090 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:40,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-12 23:00:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:43,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:00:43,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-11-12 23:00:43,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-11-12 23:00:44,363 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:44,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503775378] [2021-11-12 23:00:44,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503775378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:44,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:44,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:00:44,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783207808] [2021-11-12 23:00:44,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:44,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:00:44,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:44,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:00:44,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:00:44,365 INFO L87 Difference]: Start difference. First operand 7240 states and 9390 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 23:00:46,521 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 23:00:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:47,507 INFO L93 Difference]: Finished difference Result 7252 states and 9396 transitions. [2021-11-12 23:00:47,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:00:47,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) Word has length 265 [2021-11-12 23:00:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:47,520 INFO L225 Difference]: With dead ends: 7252 [2021-11-12 23:00:47,520 INFO L226 Difference]: Without dead ends: 7250 [2021-11-12 23:00:47,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:00:47,523 INFO L933 BasicCegarLoop]: 2230 mSDtfsCounter, 385 mSDsluCounter, 8673 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 85 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2273.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 10903 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.06ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2355.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:47,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 10903 Invalid, 106 Unknown, 0 Unchecked, 9.06ms Time], IncrementalHoareTripleChecker [85 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 2355.60ms Time] [2021-11-12 23:00:47,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2021-11-12 23:00:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 7240. [2021-11-12 23:00:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 5143 states have (on average 1.2370211938557263) internal successors, (6362), 5256 states have internal predecessors, (6362), 1496 states have call successors, (1496), 582 states have call predecessors, (1496), 588 states have return successors, (1528), 1481 states have call predecessors, (1528), 1492 states have call successors, (1528) [2021-11-12 23:00:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 9386 transitions. [2021-11-12 23:00:48,513 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 9386 transitions. Word has length 265 [2021-11-12 23:00:48,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:48,514 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 9386 transitions. [2021-11-12 23:00:48,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 23:00:48,514 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 9386 transitions. [2021-11-12 23:00:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-12 23:00:48,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:48,516 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-12 23:00:48,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:48,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:48,717 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 32 more)] === [2021-11-12 23:00:48,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:48,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1498542678, now seen corresponding path program 1 times [2021-11-12 23:00:48,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:48,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44068640] [2021-11-12 23:00:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:48,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:48,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:48,723 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:48,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-12 23:00:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:52,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:00:52,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2021-11-12 23:00:53,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2021-11-12 23:00:54,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:54,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44068640] [2021-11-12 23:00:54,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44068640] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:00:54,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:00:54,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:00:54,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044662636] [2021-11-12 23:00:54,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:54,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:00:54,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:54,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:00:54,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:00:54,476 INFO L87 Difference]: Start difference. First operand 7240 states and 9386 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-12 23:00:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:55,602 INFO L93 Difference]: Finished difference Result 7520 states and 9637 transitions. [2021-11-12 23:00:55,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:00:55,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 226 [2021-11-12 23:00:55,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:55,615 INFO L225 Difference]: With dead ends: 7520 [2021-11-12 23:00:55,615 INFO L226 Difference]: Without dead ends: 7518 [2021-11-12 23:00:55,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:00:55,617 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 1956 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.03ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:55,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1959 Valid, 6656 Invalid, 12 Unknown, 0 Unchecked, 12.03ms Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 33.72ms Time] [2021-11-12 23:00:55,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2021-11-12 23:00:56,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 7311. [2021-11-12 23:00:56,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 5199 states have (on average 1.2344681669551838) internal successors, (6418), 5309 states have internal predecessors, (6418), 1486 states have call successors, (1486), 608 states have call predecessors, (1486), 614 states have return successors, (1518), 1473 states have call predecessors, (1518), 1482 states have call successors, (1518) [2021-11-12 23:00:56,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 9422 transitions. [2021-11-12 23:00:56,430 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 9422 transitions. Word has length 226 [2021-11-12 23:00:56,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:56,431 INFO L470 AbstractCegarLoop]: Abstraction has 7311 states and 9422 transitions. [2021-11-12 23:00:56,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-12 23:00:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 9422 transitions. [2021-11-12 23:00:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-12 23:00:56,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:56,435 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:00:56,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:56,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:56,659 INFO L402 AbstractCegarLoop]: === Iteration 40 === 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 32 more)] === [2021-11-12 23:00:56,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1181782151, now seen corresponding path program 1 times [2021-11-12 23:00:56,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:56,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300069475] [2021-11-12 23:00:56,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:56,662 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:56,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:56,662 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:56,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-12 23:01:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:01,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:01:01,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-12 23:01:01,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-12 23:01:02,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:02,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300069475] [2021-11-12 23:01:02,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300069475] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:01:02,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:01:02,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-12 23:01:02,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808445668] [2021-11-12 23:01:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:02,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:01:02,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:01:02,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:01:02,208 INFO L87 Difference]: Start difference. First operand 7311 states and 9422 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:01:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:06,741 INFO L93 Difference]: Finished difference Result 15860 states and 20725 transitions. [2021-11-12 23:01:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:01:06,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 227 [2021-11-12 23:01:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:06,770 INFO L225 Difference]: With dead ends: 15860 [2021-11-12 23:01:06,770 INFO L226 Difference]: Without dead ends: 8574 [2021-11-12 23:01:06,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:01:06,787 INFO L933 BasicCegarLoop]: 2468 mSDtfsCounter, 482 mSDsluCounter, 9211 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3245.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 11679 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3359.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:06,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 11679 Invalid, 307 Unknown, 0 Unchecked, 14.07ms Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 3359.32ms Time] [2021-11-12 23:01:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8574 states. [2021-11-12 23:01:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8574 to 7311. [2021-11-12 23:01:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 5199 states have (on average 1.2336987882285055) internal successors, (6414), 5309 states have internal predecessors, (6414), 1486 states have call successors, (1486), 608 states have call predecessors, (1486), 614 states have return successors, (1518), 1473 states have call predecessors, (1518), 1482 states have call successors, (1518) [2021-11-12 23:01:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 9418 transitions. [2021-11-12 23:01:07,589 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 9418 transitions. Word has length 227 [2021-11-12 23:01:07,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:07,590 INFO L470 AbstractCegarLoop]: Abstraction has 7311 states and 9418 transitions. [2021-11-12 23:01:07,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:01:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 9418 transitions. [2021-11-12 23:01:07,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-12 23:01:07,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:07,593 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:01:07,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:07,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:07,793 INFO L402 AbstractCegarLoop]: === Iteration 41 === 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 32 more)] === [2021-11-12 23:01:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1742481929, now seen corresponding path program 1 times [2021-11-12 23:01:07,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:07,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350588928] [2021-11-12 23:01:07,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:07,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:07,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:07,797 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:07,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-12 23:01:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:12,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:01:12,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-12 23:01:12,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-12 23:01:13,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:13,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350588928] [2021-11-12 23:01:13,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350588928] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:13,195 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:13,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:01:13,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643178755] [2021-11-12 23:01:13,196 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:13,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:01:13,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:01:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:01:13,197 INFO L87 Difference]: Start difference. First operand 7311 states and 9418 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:01:14,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:14,674 INFO L93 Difference]: Finished difference Result 15733 states and 20559 transitions. [2021-11-12 23:01:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:01:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 227 [2021-11-12 23:01:14,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:14,693 INFO L225 Difference]: With dead ends: 15733 [2021-11-12 23:01:14,694 INFO L226 Difference]: Without dead ends: 8447 [2021-11-12 23:01:14,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:01:14,708 INFO L933 BasicCegarLoop]: 2262 mSDtfsCounter, 355 mSDsluCounter, 8646 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 490.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 10908 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.01ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 549.50ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:14,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 10908 Invalid, 177 Unknown, 0 Unchecked, 11.01ms Time], IncrementalHoareTripleChecker [91 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 549.50ms Time] [2021-11-12 23:01:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8447 states. [2021-11-12 23:01:15,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8447 to 7363. [2021-11-12 23:01:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7363 states, 5239 states have (on average 1.2342050009543806) internal successors, (6466), 5349 states have internal predecessors, (6466), 1498 states have call successors, (1498), 608 states have call predecessors, (1498), 614 states have return successors, (1530), 1485 states have call predecessors, (1530), 1494 states have call successors, (1530) [2021-11-12 23:01:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7363 states to 7363 states and 9494 transitions. [2021-11-12 23:01:15,566 INFO L78 Accepts]: Start accepts. Automaton has 7363 states and 9494 transitions. Word has length 227 [2021-11-12 23:01:15,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:15,566 INFO L470 AbstractCegarLoop]: Abstraction has 7363 states and 9494 transitions. [2021-11-12 23:01:15,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:01:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7363 states and 9494 transitions. [2021-11-12 23:01:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-12 23:01:15,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:15,570 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:01:15,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:15,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:15,770 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 32 more)] === [2021-11-12 23:01:15,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:15,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1441479133, now seen corresponding path program 1 times [2021-11-12 23:01:15,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:15,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680166362] [2021-11-12 23:01:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:15,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:15,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:15,774 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:15,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-12 23:01:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:20,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:01:20,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-12 23:01:20,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-12 23:01:21,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:21,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680166362] [2021-11-12 23:01:21,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680166362] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:21,001 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:21,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:01:21,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393717143] [2021-11-12 23:01:21,002 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:21,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:21,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:21,003 INFO L87 Difference]: Start difference. First operand 7363 states and 9494 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:01:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:22,205 INFO L93 Difference]: Finished difference Result 14869 states and 19223 transitions. [2021-11-12 23:01:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:22,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 229 [2021-11-12 23:01:22,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:22,222 INFO L225 Difference]: With dead ends: 14869 [2021-11-12 23:01:22,222 INFO L226 Difference]: Without dead ends: 7531 [2021-11-12 23:01:22,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 454 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 23:01:22,232 INFO L933 BasicCegarLoop]: 2054 mSDtfsCounter, 52 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 305.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.77ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 357.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:22,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 6105 Invalid, 62 Unknown, 0 Unchecked, 5.77ms Time], IncrementalHoareTripleChecker [9 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 357.17ms Time] [2021-11-12 23:01:22,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7531 states. [2021-11-12 23:01:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7531 to 7467. [2021-11-12 23:01:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7467 states, 5319 states have (on average 1.2344425643918029) internal successors, (6566), 5429 states have internal predecessors, (6566), 1522 states have call successors, (1522), 608 states have call predecessors, (1522), 614 states have return successors, (1554), 1509 states have call predecessors, (1554), 1518 states have call successors, (1554) [2021-11-12 23:01:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7467 states to 7467 states and 9642 transitions. [2021-11-12 23:01:23,099 INFO L78 Accepts]: Start accepts. Automaton has 7467 states and 9642 transitions. Word has length 229 [2021-11-12 23:01:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:23,100 INFO L470 AbstractCegarLoop]: Abstraction has 7467 states and 9642 transitions. [2021-11-12 23:01:23,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:01:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 7467 states and 9642 transitions. [2021-11-12 23:01:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-12 23:01:23,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:23,103 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:23,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Ended with exit code 0 [2021-11-12 23:01:23,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:23,303 INFO L402 AbstractCegarLoop]: === Iteration 43 === 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 32 more)] === [2021-11-12 23:01:23,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:23,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1468713123, now seen corresponding path program 1 times [2021-11-12 23:01:23,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:23,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135556998] [2021-11-12 23:01:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:23,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:23,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:23,307 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:23,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-12 23:01:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:26,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:01:26,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-12 23:01:27,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-12 23:01:27,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:27,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135556998] [2021-11-12 23:01:27,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135556998] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:27,870 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:27,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:01:27,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859306379] [2021-11-12 23:01:27,871 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:27,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:01:27,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:27,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:01:27,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:01:27,872 INFO L87 Difference]: Start difference. First operand 7467 states and 9642 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (37), 5 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-12 23:01:30,028 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 23:01:30,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:30,926 INFO L93 Difference]: Finished difference Result 7477 states and 9647 transitions. [2021-11-12 23:01:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:01:30,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (37), 5 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 244 [2021-11-12 23:01:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:30,941 INFO L225 Difference]: With dead ends: 7477 [2021-11-12 23:01:30,941 INFO L226 Difference]: Without dead ends: 7475 [2021-11-12 23:01:30,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:01:30,944 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 262 mSDsluCounter, 8299 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2231.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 10395 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.46ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2285.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:30,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 10395 Invalid, 70 Unknown, 0 Unchecked, 8.46ms Time], IncrementalHoareTripleChecker [56 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2285.72ms Time] [2021-11-12 23:01:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2021-11-12 23:01:31,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 7465. [2021-11-12 23:01:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7465 states, 5318 states have (on average 1.2337344866491162) internal successors, (6561), 5427 states have internal predecessors, (6561), 1522 states have call successors, (1522), 608 states have call predecessors, (1522), 614 states have return successors, (1554), 1509 states have call predecessors, (1554), 1518 states have call successors, (1554) [2021-11-12 23:01:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7465 states to 7465 states and 9637 transitions. [2021-11-12 23:01:31,780 INFO L78 Accepts]: Start accepts. Automaton has 7465 states and 9637 transitions. Word has length 244 [2021-11-12 23:01:31,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:31,781 INFO L470 AbstractCegarLoop]: Abstraction has 7465 states and 9637 transitions. [2021-11-12 23:01:31,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (37), 5 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-12 23:01:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 7465 states and 9637 transitions. [2021-11-12 23:01:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-12 23:01:31,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:31,785 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:31,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:31,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:31,986 INFO L402 AbstractCegarLoop]: === Iteration 44 === 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 32 more)] === [2021-11-12 23:01:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1363277364, now seen corresponding path program 1 times [2021-11-12 23:01:31,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:31,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797793107] [2021-11-12 23:01:31,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:31,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:31,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:31,989 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:31,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-12 23:01:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:35,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:35,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-11-12 23:01:36,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:36,624 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-12 23:01:36,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:36,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797793107] [2021-11-12 23:01:36,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797793107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:36,625 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:36,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:01:36,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28903330] [2021-11-12 23:01:36,625 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:36,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:36,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:36,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:36,626 INFO L87 Difference]: Start difference. First operand 7465 states and 9637 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-12 23:01:37,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:37,627 INFO L93 Difference]: Finished difference Result 15789 states and 20589 transitions. [2021-11-12 23:01:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:01:37,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 250 [2021-11-12 23:01:37,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:37,644 INFO L225 Difference]: With dead ends: 15789 [2021-11-12 23:01:37,644 INFO L226 Difference]: Without dead ends: 8349 [2021-11-12 23:01:37,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 496 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:01:37,657 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 193 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 6385 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.75ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:37,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 6385 Invalid, 67 Unknown, 0 Unchecked, 5.75ms Time], IncrementalHoareTripleChecker [52 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 93.78ms Time] [2021-11-12 23:01:37,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8349 states. [2021-11-12 23:01:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8349 to 7913. [2021-11-12 23:01:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7913 states, 5626 states have (on average 1.2365801635264841) internal successors, (6957), 5735 states have internal predecessors, (6957), 1658 states have call successors, (1658), 612 states have call predecessors, (1658), 618 states have return successors, (1690), 1645 states have call predecessors, (1690), 1654 states have call successors, (1690) [2021-11-12 23:01:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7913 states to 7913 states and 10305 transitions. [2021-11-12 23:01:38,571 INFO L78 Accepts]: Start accepts. Automaton has 7913 states and 10305 transitions. Word has length 250 [2021-11-12 23:01:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:38,571 INFO L470 AbstractCegarLoop]: Abstraction has 7913 states and 10305 transitions. [2021-11-12 23:01:38,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-12 23:01:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 7913 states and 10305 transitions. [2021-11-12 23:01:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-12 23:01:38,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:38,575 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:38,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:38,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:38,775 INFO L402 AbstractCegarLoop]: === Iteration 45 === 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 32 more)] === [2021-11-12 23:01:38,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:38,776 INFO L85 PathProgramCache]: Analyzing trace with hash 225808326, now seen corresponding path program 1 times [2021-11-12 23:01:38,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:38,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445179850] [2021-11-12 23:01:38,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:38,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:38,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:38,779 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:38,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-12 23:01:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:42,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 1738 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:01:42,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-12 23:01:43,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-12 23:01:43,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:43,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445179850] [2021-11-12 23:01:43,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445179850] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:01:43,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1405952466] [2021-11-12 23:01:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:43,617 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:01:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:01:43,620 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:01:43,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2021-11-12 23:01:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:46,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1738 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:01:46,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-12 23:01:47,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-12 23:01:47,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1405952466] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:01:47,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104415460] [2021-11-12 23:01:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:47,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:01:47,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:01:47,602 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:01:47,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-12 23:01:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:48,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1738 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:01:48,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-11-12 23:01:49,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-11-12 23:01:50,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104415460] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:50,315 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 23:01:50,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-12 23:01:50,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543439350] [2021-11-12 23:01:50,316 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:50,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:01:50,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:50,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:01:50,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:01:50,317 INFO L87 Difference]: Start difference. First operand 7913 states and 10305 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-12 23:01:52,473 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 23:01:53,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:53,451 INFO L93 Difference]: Finished difference Result 7915 states and 10306 transitions. [2021-11-12 23:01:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:01:53,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 248 [2021-11-12 23:01:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:53,466 INFO L225 Difference]: With dead ends: 7915 [2021-11-12 23:01:53,466 INFO L226 Difference]: Without dead ends: 7913 [2021-11-12 23:01:53,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1484 GetRequests, 1471 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:01:53,469 INFO L933 BasicCegarLoop]: 2131 mSDtfsCounter, 571 mSDsluCounter, 5790 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2180.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 7921 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2182.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:53,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 7921 Invalid, 13 Unknown, 0 Unchecked, 7.28ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2182.99ms Time] [2021-11-12 23:01:53,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7913 states. [2021-11-12 23:01:54,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7913 to 7913. [2021-11-12 23:01:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7913 states, 5626 states have (on average 1.2351581940988268) internal successors, (6949), 5735 states have internal predecessors, (6949), 1658 states have call successors, (1658), 612 states have call predecessors, (1658), 618 states have return successors, (1690), 1645 states have call predecessors, (1690), 1654 states have call successors, (1690) [2021-11-12 23:01:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7913 states to 7913 states and 10297 transitions. [2021-11-12 23:01:54,373 INFO L78 Accepts]: Start accepts. Automaton has 7913 states and 10297 transitions. Word has length 248 [2021-11-12 23:01:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:54,374 INFO L470 AbstractCegarLoop]: Abstraction has 7913 states and 10297 transitions. [2021-11-12 23:01:54,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-12 23:01:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 7913 states and 10297 transitions. [2021-11-12 23:01:54,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-12 23:01:54,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:54,378 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-12 23:01:54,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:54,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:54,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-11-12 23:01:54,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:01:54,983 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 32 more)] === [2021-11-12 23:01:54,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:54,983 INFO L85 PathProgramCache]: Analyzing trace with hash 105678280, now seen corresponding path program 1 times [2021-11-12 23:01:54,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:54,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177776083] [2021-11-12 23:01:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:54,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:54,986 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:54,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-12 23:01:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:59,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1928 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:59,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-12 23:02:00,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2021-11-12 23:02:00,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:00,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177776083] [2021-11-12 23:02:00,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177776083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:02:00,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:02:00,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:02:00,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888376286] [2021-11-12 23:02:00,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:00,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:02:00,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:00,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:02:00,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:02:00,596 INFO L87 Difference]: Start difference. First operand 7913 states and 10297 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-12 23:02:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:01,567 INFO L93 Difference]: Finished difference Result 16333 states and 21365 transitions. [2021-11-12 23:02:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:02:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 268 [2021-11-12 23:02:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:01,587 INFO L225 Difference]: With dead ends: 16333 [2021-11-12 23:02:01,587 INFO L226 Difference]: Without dead ends: 8445 [2021-11-12 23:02:01,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:02:01,683 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 177 mSDsluCounter, 4111 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 6222 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.55ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.54ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:01,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 6222 Invalid, 39 Unknown, 0 Unchecked, 5.55ms Time], IncrementalHoareTripleChecker [29 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 83.54ms Time] [2021-11-12 23:02:01,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2021-11-12 23:02:02,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7921. [2021-11-12 23:02:02,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 5634 states have (on average 1.2348242811501597) internal successors, (6957), 5743 states have internal predecessors, (6957), 1658 states have call successors, (1658), 612 states have call predecessors, (1658), 618 states have return successors, (1690), 1645 states have call predecessors, (1690), 1654 states have call successors, (1690) [2021-11-12 23:02:02,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 10305 transitions. [2021-11-12 23:02:02,509 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 10305 transitions. Word has length 268 [2021-11-12 23:02:02,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:02,510 INFO L470 AbstractCegarLoop]: Abstraction has 7921 states and 10305 transitions. [2021-11-12 23:02:02,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-12 23:02:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 10305 transitions. [2021-11-12 23:02:02,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-12 23:02:02,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:02,515 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:02,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:02,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:02,727 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-12 23:02:02,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2115761746, now seen corresponding path program 1 times [2021-11-12 23:02:02,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:02,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372536893] [2021-11-12 23:02:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:02,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:02,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:02,730 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:02,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b2cd17c-6529-4439-a9eb-03225bda3888/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process