./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:52:39,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:52:39,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:52:39,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:52:39,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:52:39,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:52:39,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:52:39,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:52:39,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:52:39,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:52:39,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:52:39,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:52:39,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:52:39,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:52:39,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:52:39,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:52:39,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:52:39,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:52:39,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:52:39,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:52:39,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:52:39,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:52:39,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:52:39,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:52:39,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:52:39,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:52:39,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:52:39,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:52:39,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:52:39,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:52:39,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:52:39,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:52:39,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:52:39,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:52:39,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:52:39,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:52:39,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:52:39,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:52:39,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:52:39,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:52:39,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:52:39,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:52:39,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:52:39,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:52:39,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:52:39,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:52:39,697 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:52:39,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:52:39,698 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:52:39,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:52:39,701 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:52:39,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:52:39,706 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:52:39,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:52:39,706 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:52:39,706 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:52:39,707 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:52:39,707 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:52:39,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:52:39,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:52:39,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:52:39,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:52:39,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:52:39,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:52:39,709 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:52:39,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:52:39,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:52:39,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:52:39,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:52:39,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:52:39,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:39,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:52:39,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:52:39,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:52:39,715 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:52:39,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:52:39,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:52:39,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:52:39,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:52:39,716 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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c [2021-11-12 22:52:40,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:52:40,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:52:40,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:52:40,042 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:52:40,043 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:52:40,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-11-12 22:52:40,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/17c0f6cd3/e6200655a1204709947b24dba507f98f/FLAG0bc481927 [2021-11-12 22:52:41,162 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:52:41,164 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-11-12 22:52:41,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/17c0f6cd3/e6200655a1204709947b24dba507f98f/FLAG0bc481927 [2021-11-12 22:52:41,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/17c0f6cd3/e6200655a1204709947b24dba507f98f [2021-11-12 22:52:41,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:52:41,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:52:41,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:41,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:52:41,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:52:41,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:41" (1/1) ... [2021-11-12 22:52:41,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167fd310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:41, skipping insertion in model container [2021-11-12 22:52:41,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:41" (1/1) ... [2021-11-12 22:52:41,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:52:41,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:43,350 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 22:52:43,357 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 22:52:43,388 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 22:52:43,401 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 22:52:43,471 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 22:52:43,503 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 22:52:43,521 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 22:52:43,543 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 22:52:43,583 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 22:52:43,593 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 22:52:43,618 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 22:52:43,623 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 22:52:43,624 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 22:52:43,643 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 22:52:43,650 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 22:52:43,815 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 22:52:43,822 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 22:52:43,823 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 22:52:43,828 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 22:52:43,829 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 22:52:43,833 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 22:52:43,849 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 22:52:43,855 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 22:52:43,868 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 22:52:43,870 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 22:52:43,870 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 22:52:43,871 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 22:52:43,873 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 22:52:44,144 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 22:52:44,150 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 22:52:44,589 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 22:52:44,589 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 22:52:45,148 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2021-11-12 22:52:45,150 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2021-11-12 22:52:45,151 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2021-11-12 22:52:45,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2021-11-12 22:52:45,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2021-11-12 22:52:45,153 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2021-11-12 22:52:45,153 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2021-11-12 22:52:45,154 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2021-11-12 22:52:45,154 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2021-11-12 22:52:45,155 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2021-11-12 22:52:45,155 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2021-11-12 22:52:45,156 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2021-11-12 22:52:45,162 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2021-11-12 22:52:45,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2021-11-12 22:52:45,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2021-11-12 22:52:45,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2021-11-12 22:52:45,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2021-11-12 22:52:45,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2021-11-12 22:52:45,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2021-11-12 22:52:45,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2021-11-12 22:52:45,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2021-11-12 22:52:45,167 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2021-11-12 22:52:45,167 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2021-11-12 22:52:45,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2021-11-12 22:52:45,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2021-11-12 22:52:45,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2021-11-12 22:52:45,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2021-11-12 22:52:45,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2021-11-12 22:52:45,170 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2021-11-12 22:52:45,170 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2021-11-12 22:52:45,171 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2021-11-12 22:52:45,171 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2021-11-12 22:52:45,172 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2021-11-12 22:52:45,172 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2021-11-12 22:52:45,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2021-11-12 22:52:45,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2021-11-12 22:52:45,174 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2021-11-12 22:52:45,174 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2021-11-12 22:52:45,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2021-11-12 22:52:45,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2021-11-12 22:52:45,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2021-11-12 22:52:45,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2021-11-12 22:52:45,177 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2021-11-12 22:52:45,177 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2021-11-12 22:52:45,178 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2021-11-12 22:52:45,178 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2021-11-12 22:52:45,179 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2021-11-12 22:52:45,179 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2021-11-12 22:52:45,179 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2021-11-12 22:52:45,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2021-11-12 22:52:45,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2021-11-12 22:52:45,181 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2021-11-12 22:52:45,181 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2021-11-12 22:52:45,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2021-11-12 22:52:45,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2021-11-12 22:52:45,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2021-11-12 22:52:45,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2021-11-12 22:52:45,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2021-11-12 22:52:45,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2021-11-12 22:52:45,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2021-11-12 22:52:45,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2021-11-12 22:52:45,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2021-11-12 22:52:45,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2021-11-12 22:52:45,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2021-11-12 22:52:45,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2021-11-12 22:52:45,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2021-11-12 22:52:45,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2021-11-12 22:52:45,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2021-11-12 22:52:45,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2021-11-12 22:52:45,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2021-11-12 22:52:45,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2021-11-12 22:52:45,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2021-11-12 22:52:45,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2021-11-12 22:52:45,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2021-11-12 22:52:45,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2021-11-12 22:52:45,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2021-11-12 22:52:45,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2021-11-12 22:52:45,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2021-11-12 22:52:45,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2021-11-12 22:52:45,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2021-11-12 22:52:45,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2021-11-12 22:52:45,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2021-11-12 22:52:45,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2021-11-12 22:52:45,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2021-11-12 22:52:45,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2021-11-12 22:52:45,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2021-11-12 22:52:45,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2021-11-12 22:52:45,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2021-11-12 22:52:45,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:45,238 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 22:52:45,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42819151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:45, skipping insertion in model container [2021-11-12 22:52:45,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:45,241 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:52:45,246 INFO L158 Benchmark]: Toolchain (without parser) took 3710.63ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 77.6MB in the beginning and 83.6MB in the end (delta: -6.1MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2021-11-12 22:52:45,247 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:52:45,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3694.70ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 77.2MB in the beginning and 83.6MB in the end (delta: -6.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2021-11-12 22:52:45,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3694.70ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 77.2MB in the beginning and 83.6MB in the end (delta: -6.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4534]: 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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:52:47,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:52:47,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:52:47,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:52:47,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:52:47,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:52:47,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:52:47,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:52:47,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:52:47,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:52:47,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:52:47,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:52:47,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:52:47,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:52:47,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:52:47,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:52:47,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:52:47,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:52:47,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:52:47,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:52:47,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:52:47,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:52:47,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:52:47,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:52:47,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:52:47,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:52:47,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:52:47,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:52:47,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:52:47,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:52:47,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:52:47,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:52:47,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:52:47,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:52:47,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:52:47,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:52:47,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:52:47,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:52:47,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:52:47,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:52:47,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:52:47,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:52:47,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:52:47,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:52:47,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:52:47,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:52:47,903 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:52:47,903 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:52:47,903 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:52:47,904 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:52:47,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:52:47,904 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:52:47,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:52:47,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:52:47,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:52:47,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:52:47,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:52:47,908 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:52:47,909 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:52:47,909 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:52:47,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:52:47,909 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:52:47,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:52:47,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:52:47,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:52:47,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:52:47,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:47,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:52:47,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:52:47,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:52:47,912 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:52:47,913 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:52:47,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:52:47,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:52:47,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:52:47,914 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_1abfcdc5-db9e-4ec3-b62d-691109ed893a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c [2021-11-12 22:52:48,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:52:48,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:52:48,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:52:48,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:52:48,363 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:52:48,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-11-12 22:52:48,442 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/6aa64e6b6/0e443921c6954109b54b7a33f87a7af9/FLAG85f6ec165 [2021-11-12 22:52:49,471 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:52:49,472 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-11-12 22:52:49,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/6aa64e6b6/0e443921c6954109b54b7a33f87a7af9/FLAG85f6ec165 [2021-11-12 22:52:49,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/data/6aa64e6b6/0e443921c6954109b54b7a33f87a7af9 [2021-11-12 22:52:49,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:52:49,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:52:49,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:49,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:52:49,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:52:49,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:49" (1/1) ... [2021-11-12 22:52:49,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5e2eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:49, skipping insertion in model container [2021-11-12 22:52:49,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:52:49" (1/1) ... [2021-11-12 22:52:49,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:52:50,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:53,738 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2021-11-12 22:52:53,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2021-11-12 22:52:53,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2021-11-12 22:52:53,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2021-11-12 22:52:53,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2021-11-12 22:52:53,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2021-11-12 22:52:53,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2021-11-12 22:52:53,745 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2021-11-12 22:52:53,745 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2021-11-12 22:52:53,746 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2021-11-12 22:52:53,746 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2021-11-12 22:52:53,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2021-11-12 22:52:53,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2021-11-12 22:52:53,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2021-11-12 22:52:53,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2021-11-12 22:52:53,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2021-11-12 22:52:53,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2021-11-12 22:52:53,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2021-11-12 22:52:53,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2021-11-12 22:52:53,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2021-11-12 22:52:53,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2021-11-12 22:52:53,752 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2021-11-12 22:52:53,752 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2021-11-12 22:52:53,753 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2021-11-12 22:52:53,753 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2021-11-12 22:52:53,754 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2021-11-12 22:52:53,754 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2021-11-12 22:52:53,755 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2021-11-12 22:52:53,755 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2021-11-12 22:52:53,756 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2021-11-12 22:52:53,756 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2021-11-12 22:52:53,756 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2021-11-12 22:52:53,757 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2021-11-12 22:52:53,757 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2021-11-12 22:52:53,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2021-11-12 22:52:53,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2021-11-12 22:52:53,774 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2021-11-12 22:52:53,774 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2021-11-12 22:52:53,775 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2021-11-12 22:52:53,775 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2021-11-12 22:52:53,776 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2021-11-12 22:52:53,776 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2021-11-12 22:52:53,778 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2021-11-12 22:52:53,779 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2021-11-12 22:52:53,780 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2021-11-12 22:52:53,780 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2021-11-12 22:52:53,782 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2021-11-12 22:52:53,782 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2021-11-12 22:52:53,784 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2021-11-12 22:52:53,785 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2021-11-12 22:52:53,785 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2021-11-12 22:52:53,786 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2021-11-12 22:52:53,787 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2021-11-12 22:52:53,787 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2021-11-12 22:52:53,788 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2021-11-12 22:52:53,788 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2021-11-12 22:52:53,789 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2021-11-12 22:52:53,789 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2021-11-12 22:52:53,790 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2021-11-12 22:52:53,790 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2021-11-12 22:52:53,791 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2021-11-12 22:52:53,792 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2021-11-12 22:52:53,793 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2021-11-12 22:52:53,793 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2021-11-12 22:52:53,794 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2021-11-12 22:52:53,795 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2021-11-12 22:52:53,795 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2021-11-12 22:52:53,796 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2021-11-12 22:52:53,796 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2021-11-12 22:52:53,797 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2021-11-12 22:52:53,797 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2021-11-12 22:52:53,798 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2021-11-12 22:52:53,800 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2021-11-12 22:52:53,801 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2021-11-12 22:52:53,802 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2021-11-12 22:52:53,802 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2021-11-12 22:52:53,803 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2021-11-12 22:52:53,804 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2021-11-12 22:52:53,804 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2021-11-12 22:52:53,805 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2021-11-12 22:52:53,805 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2021-11-12 22:52:53,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2021-11-12 22:52:53,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2021-11-12 22:52:53,807 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2021-11-12 22:52:53,807 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2021-11-12 22:52:53,808 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2021-11-12 22:52:53,808 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2021-11-12 22:52:53,809 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2021-11-12 22:52:53,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:53,871 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:52:53,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:52:54,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2021-11-12 22:52:54,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2021-11-12 22:52:54,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2021-11-12 22:52:54,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2021-11-12 22:52:54,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2021-11-12 22:52:54,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2021-11-12 22:52:54,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2021-11-12 22:52:54,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2021-11-12 22:52:54,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2021-11-12 22:52:54,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2021-11-12 22:52:54,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2021-11-12 22:52:54,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2021-11-12 22:52:54,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2021-11-12 22:52:54,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2021-11-12 22:52:54,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2021-11-12 22:52:54,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2021-11-12 22:52:54,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2021-11-12 22:52:54,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2021-11-12 22:52:54,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2021-11-12 22:52:54,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2021-11-12 22:52:54,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2021-11-12 22:52:54,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2021-11-12 22:52:54,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2021-11-12 22:52:54,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2021-11-12 22:52:54,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2021-11-12 22:52:54,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2021-11-12 22:52:54,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2021-11-12 22:52:54,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2021-11-12 22:52:54,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2021-11-12 22:52:54,207 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2021-11-12 22:52:54,207 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2021-11-12 22:52:54,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2021-11-12 22:52:54,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2021-11-12 22:52:54,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2021-11-12 22:52:54,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2021-11-12 22:52:54,210 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2021-11-12 22:52:54,210 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2021-11-12 22:52:54,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2021-11-12 22:52:54,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2021-11-12 22:52:54,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2021-11-12 22:52:54,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2021-11-12 22:52:54,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2021-11-12 22:52:54,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2021-11-12 22:52:54,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2021-11-12 22:52:54,215 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2021-11-12 22:52:54,215 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2021-11-12 22:52:54,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2021-11-12 22:52:54,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2021-11-12 22:52:54,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2021-11-12 22:52:54,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2021-11-12 22:52:54,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2021-11-12 22:52:54,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2021-11-12 22:52:54,219 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2021-11-12 22:52:54,219 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2021-11-12 22:52:54,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2021-11-12 22:52:54,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2021-11-12 22:52:54,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2021-11-12 22:52:54,222 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2021-11-12 22:52:54,222 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2021-11-12 22:52:54,223 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2021-11-12 22:52:54,223 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2021-11-12 22:52:54,224 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2021-11-12 22:52:54,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2021-11-12 22:52:54,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2021-11-12 22:52:54,226 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2021-11-12 22:52:54,226 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2021-11-12 22:52:54,227 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2021-11-12 22:52:54,227 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2021-11-12 22:52:54,228 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2021-11-12 22:52:54,228 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2021-11-12 22:52:54,229 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2021-11-12 22:52:54,229 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2021-11-12 22:52:54,230 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2021-11-12 22:52:54,230 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2021-11-12 22:52:54,231 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2021-11-12 22:52:54,231 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2021-11-12 22:52:54,232 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2021-11-12 22:52:54,232 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2021-11-12 22:52:54,232 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2021-11-12 22:52:54,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2021-11-12 22:52:54,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2021-11-12 22:52:54,234 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2021-11-12 22:52:54,234 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2021-11-12 22:52:54,235 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2021-11-12 22:52:54,235 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2021-11-12 22:52:54,235 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2021-11-12 22:52:54,236 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2021-11-12 22:52:54,236 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2021-11-12 22:52:54,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:54,255 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:52:54,576 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2021-11-12 22:52:54,576 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2021-11-12 22:52:54,577 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2021-11-12 22:52:54,577 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2021-11-12 22:52:54,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2021-11-12 22:52:54,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2021-11-12 22:52:54,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2021-11-12 22:52:54,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2021-11-12 22:52:54,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2021-11-12 22:52:54,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2021-11-12 22:52:54,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2021-11-12 22:52:54,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2021-11-12 22:52:54,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2021-11-12 22:52:54,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2021-11-12 22:52:54,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2021-11-12 22:52:54,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2021-11-12 22:52:54,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2021-11-12 22:52:54,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2021-11-12 22:52:54,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2021-11-12 22:52:54,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2021-11-12 22:52:54,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2021-11-12 22:52:54,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2021-11-12 22:52:54,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2021-11-12 22:52:54,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2021-11-12 22:52:54,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2021-11-12 22:52:54,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2021-11-12 22:52:54,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2021-11-12 22:52:54,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2021-11-12 22:52:54,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2021-11-12 22:52:54,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2021-11-12 22:52:54,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2021-11-12 22:52:54,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2021-11-12 22:52:54,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2021-11-12 22:52:54,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2021-11-12 22:52:54,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2021-11-12 22:52:54,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2021-11-12 22:52:54,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2021-11-12 22:52:54,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2021-11-12 22:52:54,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2021-11-12 22:52:54,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2021-11-12 22:52:54,594 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2021-11-12 22:52:54,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2021-11-12 22:52:54,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2021-11-12 22:52:54,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2021-11-12 22:52:54,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2021-11-12 22:52:54,598 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2021-11-12 22:52:54,598 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2021-11-12 22:52:54,599 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2021-11-12 22:52:54,599 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2021-11-12 22:52:54,600 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2021-11-12 22:52:54,600 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2021-11-12 22:52:54,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2021-11-12 22:52:54,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2021-11-12 22:52:54,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2021-11-12 22:52:54,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2021-11-12 22:52:54,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2021-11-12 22:52:54,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2021-11-12 22:52:54,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2021-11-12 22:52:54,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2021-11-12 22:52:54,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2021-11-12 22:52:54,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2021-11-12 22:52:54,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2021-11-12 22:52:54,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2021-11-12 22:52:54,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2021-11-12 22:52:54,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2021-11-12 22:52:54,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2021-11-12 22:52:54,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2021-11-12 22:52:54,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2021-11-12 22:52:54,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2021-11-12 22:52:54,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2021-11-12 22:52:54,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2021-11-12 22:52:54,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2021-11-12 22:52:54,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2021-11-12 22:52:54,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2021-11-12 22:52:54,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2021-11-12 22:52:54,610 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2021-11-12 22:52:54,610 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2021-11-12 22:52:54,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2021-11-12 22:52:54,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2021-11-12 22:52:54,612 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2021-11-12 22:52:54,618 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2021-11-12 22:52:54,618 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2021-11-12 22:52:54,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2021-11-12 22:52:54,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2021-11-12 22:52:54,620 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2021-11-12 22:52:54,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2021-11-12 22:52:54,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2021-11-12 22:52:54,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2021-11-12 22:52:54,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:52:55,100 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:52:55,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55 WrapperNode [2021-11-12 22:52:55,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:52:55,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:52:55,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:52:55,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:52:55,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:52:55,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:52:55,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:52:55,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:52:55,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:52:55,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:52:55,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:52:55,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:52:55,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (1/1) ... [2021-11-12 22:52:55,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:52:55,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:55,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:52:55,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:52:55,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:52:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:52:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:52:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:52:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2021-11-12 22:52:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2021-11-12 22:52:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-11-12 22:52:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-11-12 22:52:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:52:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:52:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:52:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:52:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-12 22:52:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-12 22:52:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-12 22:52:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-12 22:52:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:52:55,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:52:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 22:52:55,870 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 22:52:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:52:55,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:52:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:52:55,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:52:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2021-11-12 22:52:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2021-11-12 22:52:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:52:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:52:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_iuspin_of_wdm_device [2021-11-12 22:52:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_iuspin_of_wdm_device [2021-11-12 22:52:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:52:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:52:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:52:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:52:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:52:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:52:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:52:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:52:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-12 22:52:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-12 22:52:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 22:52:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 22:52:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 22:52:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 22:52:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:52:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:52:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 22:52:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 22:52:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:52:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:52:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-12 22:52:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-12 22:52:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 22:52:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 22:52:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-12 22:52:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-12 22:52:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:52:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:52:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_111 [2021-11-12 22:52:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_111 [2021-11-12 22:52:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:52:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:52:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-12 22:52:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-12 22:52:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:52:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:52:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 22:52:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 22:52:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:52:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:52:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-12 22:52:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-12 22:52:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wlock_of_wdm_device [2021-11-12 22:52:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wlock_of_wdm_device [2021-11-12 22:52:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:52:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:52:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2021-11-12 22:52:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2021-11-12 22:52:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-12 22:52:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-12 22:52:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:52:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:52:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-12 22:52:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-12 22:52:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:52:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:52:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:52:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_iuspin_of_wdm_device [2021-11-12 22:52:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_iuspin_of_wdm_device [2021-11-12 22:52:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:52:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:52:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:52:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-12 22:52:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-12 22:52:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-12 22:52:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-12 22:52:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-12 22:52:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-12 22:52:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:52:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:52:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2021-11-12 22:52:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2021-11-12 22:52:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 22:52:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 22:52:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-12 22:52:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-12 22:52:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-12 22:52:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-12 22:52:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:52:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:52:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:52:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:52:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:52:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-11-12 22:52:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-11-12 22:52:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:52:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:52:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:52:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:52:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:52:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2021-11-12 22:52:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2021-11-12 22:52:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-11-12 22:52:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-11-12 22:52:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:52:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:52:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-12 22:52:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-12 22:52:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2021-11-12 22:52:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2021-11-12 22:52:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:52:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:52:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:52:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:52:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:52:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:52:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2021-11-12 22:52:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2021-11-12 22:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:52:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:52:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wdm_mutex [2021-11-12 22:52:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wdm_mutex [2021-11-12 22:52:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-12 22:52:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-12 22:52:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-12 22:52:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-12 22:52:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:52:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:52:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_rlock_of_wdm_device [2021-11-12 22:52:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_rlock_of_wdm_device [2021-11-12 22:52:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:52:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:52:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:52:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:52:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-12 22:52:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-12 22:52:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-12 22:52:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-12 22:52:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:52:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:52:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:52:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:52:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:52:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:52:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:52:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:52:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-12 22:52:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-12 22:52:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:52:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:52:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wdm_mutex [2021-11-12 22:52:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wdm_mutex [2021-11-12 22:52:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:52:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:52:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:52:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:52:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:52:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:52:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:52:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:52:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:52:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:52:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:52:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:52:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:52:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2021-11-12 22:52:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2021-11-12 22:52:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2021-11-12 22:52:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2021-11-12 22:52:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:52:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:52:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-12 22:52:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-12 22:52:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_rlock_of_wdm_device [2021-11-12 22:52:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_rlock_of_wdm_device [2021-11-12 22:52:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-12 22:52:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-12 22:52:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:52:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:52:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:52:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:52:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:52:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:52:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wlock_of_wdm_device [2021-11-12 22:52:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wlock_of_wdm_device [2021-11-12 22:52:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_110 [2021-11-12 22:52:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_110 [2021-11-12 22:52:56,882 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:53:23,621 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:53:23,621 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:53:23,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:53:23 BoogieIcfgContainer [2021-11-12 22:53:23,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:53:23,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:53:23,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:53:23,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:53:23,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:52:49" (1/3) ... [2021-11-12 22:53:23,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d3a791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:53:23, skipping insertion in model container [2021-11-12 22:53:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:52:55" (2/3) ... [2021-11-12 22:53:23,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d3a791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:53:23, skipping insertion in model container [2021-11-12 22:53:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:53:23" (3/3) ... [2021-11-12 22:53:23,634 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-11-12 22:53:23,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:53:23,641 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-12 22:53:23,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:53:23,707 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 22:53:23,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-12 22:53:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 1343 states, 834 states have (on average 1.2470023980815348) internal successors, (1040), 886 states have internal predecessors, (1040), 384 states have call successors, (384), 95 states have call predecessors, (384), 94 states have return successors, (379), 377 states have call predecessors, (379), 379 states have call successors, (379) [2021-11-12 22:53:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 22:53:23,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:23,768 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:23,768 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:23,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:23,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2115126692, now seen corresponding path program 1 times [2021-11-12 22:53:23,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:23,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247494120] [2021-11-12 22:53:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:23,793 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:23,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:23,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:23,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:53:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:26,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:26,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:26,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:26,934 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:26,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247494120] [2021-11-12 22:53:26,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247494120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:26,935 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:26,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:26,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793218514] [2021-11-12 22:53:26,937 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:26,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:26,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:26,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:26,978 INFO L87 Difference]: Start difference. First operand has 1343 states, 834 states have (on average 1.2470023980815348) internal successors, (1040), 886 states have internal predecessors, (1040), 384 states have call successors, (384), 95 states have call predecessors, (384), 94 states have return successors, (379), 377 states have call predecessors, (379), 379 states have call successors, (379) 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, (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 22:53:27,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:27,260 INFO L93 Difference]: Finished difference Result 2623 states and 3670 transitions. [2021-11-12 22:53:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:27,262 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, (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 71 [2021-11-12 22:53:27,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:27,287 INFO L225 Difference]: With dead ends: 2623 [2021-11-12 22:53:27,288 INFO L226 Difference]: Without dead ends: 1325 [2021-11-12 22:53:27,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 22:53:27,303 INFO L933 BasicCegarLoop]: 1766 mSDtfsCounter, 1714 mSDsluCounter, 3528 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.72ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:27,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1716 Valid, 5294 Invalid, 2 Unknown, 0 Unchecked, 42.11ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.72ms Time] [2021-11-12 22:53:27,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2021-11-12 22:53:27,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2021-11-12 22:53:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 824 states have (on average 1.2063106796116505) internal successors, (994), 871 states have internal predecessors, (994), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1750 transitions. [2021-11-12 22:53:27,527 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1750 transitions. Word has length 71 [2021-11-12 22:53:27,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:27,530 INFO L470 AbstractCegarLoop]: Abstraction has 1325 states and 1750 transitions. [2021-11-12 22:53:27,530 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, (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 22:53:27,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1750 transitions. [2021-11-12 22:53:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-12 22:53:27,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:27,536 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:27,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:27,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:27,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:27,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:27,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1622067492, now seen corresponding path program 1 times [2021-11-12 22:53:27,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:27,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413094757] [2021-11-12 22:53:27,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:27,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:27,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:27,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:27,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:53:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:29,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:29,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:30,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:30,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:30,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413094757] [2021-11-12 22:53:30,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413094757] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:30,578 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:30,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:30,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604341845] [2021-11-12 22:53:30,578 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:30,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:30,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:30,584 INFO L87 Difference]: Start difference. First operand 1325 states and 1750 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, (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 22:53:30,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:30,749 INFO L93 Difference]: Finished difference Result 1325 states and 1750 transitions. [2021-11-12 22:53:30,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:30,750 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, (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 77 [2021-11-12 22:53:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:30,765 INFO L225 Difference]: With dead ends: 1325 [2021-11-12 22:53:30,766 INFO L226 Difference]: Without dead ends: 1323 [2021-11-12 22:53:30,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 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 22:53:30,768 INFO L933 BasicCegarLoop]: 1746 mSDtfsCounter, 1688 mSDsluCounter, 3488 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.76ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:30,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 5234 Invalid, 2 Unknown, 0 Unchecked, 24.07ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.76ms Time] [2021-11-12 22:53:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2021-11-12 22:53:30,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1323. [2021-11-12 22:53:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 823 states have (on average 1.2053462940461726) internal successors, (992), 869 states have internal predecessors, (992), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1748 transitions. [2021-11-12 22:53:30,887 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1748 transitions. Word has length 77 [2021-11-12 22:53:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:30,890 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 1748 transitions. [2021-11-12 22:53:30,891 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, (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 22:53:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1748 transitions. [2021-11-12 22:53:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-12 22:53:30,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:30,900 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:30,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:31,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:31,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:31,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:31,122 INFO L85 PathProgramCache]: Analyzing trace with hash 885192315, now seen corresponding path program 1 times [2021-11-12 22:53:31,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:31,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158008303] [2021-11-12 22:53:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:31,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:31,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:31,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:31,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:53:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:32,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:32,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:33,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:33,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:33,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158008303] [2021-11-12 22:53:33,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158008303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:33,824 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:33,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:33,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672049161] [2021-11-12 22:53:33,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:33,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:33,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:33,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:33,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:33,826 INFO L87 Difference]: Start difference. First operand 1323 states and 1748 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, (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 22:53:33,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:33,966 INFO L93 Difference]: Finished difference Result 1323 states and 1748 transitions. [2021-11-12 22:53:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:33,966 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, (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 83 [2021-11-12 22:53:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:33,978 INFO L225 Difference]: With dead ends: 1323 [2021-11-12 22:53:33,978 INFO L226 Difference]: Without dead ends: 1321 [2021-11-12 22:53:33,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 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 22:53:33,982 INFO L933 BasicCegarLoop]: 1744 mSDtfsCounter, 1680 mSDsluCounter, 3484 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:33,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1682 Valid, 5228 Invalid, 2 Unknown, 0 Unchecked, 19.75ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.00ms Time] [2021-11-12 22:53:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-11-12 22:53:34,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1321. [2021-11-12 22:53:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 822 states have (on average 1.2043795620437956) internal successors, (990), 867 states have internal predecessors, (990), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1746 transitions. [2021-11-12 22:53:34,084 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1746 transitions. Word has length 83 [2021-11-12 22:53:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:34,087 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1746 transitions. [2021-11-12 22:53:34,087 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, (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 22:53:34,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1746 transitions. [2021-11-12 22:53:34,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-12 22:53:34,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:34,091 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:34,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:34,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:34,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:34,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:34,307 INFO L85 PathProgramCache]: Analyzing trace with hash -839757899, now seen corresponding path program 1 times [2021-11-12 22:53:34,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:34,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592070001] [2021-11-12 22:53:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:34,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:34,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:34,311 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:34,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:53:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:36,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:36,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:36,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:36,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:36,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592070001] [2021-11-12 22:53:36,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592070001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:36,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:36,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:36,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711789470] [2021-11-12 22:53:36,960 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:36,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:36,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:36,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:36,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:36,961 INFO L87 Difference]: Start difference. First operand 1321 states and 1746 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, (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 22:53:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:37,084 INFO L93 Difference]: Finished difference Result 1321 states and 1746 transitions. [2021-11-12 22:53:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:37,085 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, (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 89 [2021-11-12 22:53:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:37,097 INFO L225 Difference]: With dead ends: 1321 [2021-11-12 22:53:37,097 INFO L226 Difference]: Without dead ends: 1319 [2021-11-12 22:53:37,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 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 22:53:37,100 INFO L933 BasicCegarLoop]: 1742 mSDtfsCounter, 1675 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.57ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:37,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1677 Valid, 3482 Invalid, 2 Unknown, 0 Unchecked, 11.82ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.57ms Time] [2021-11-12 22:53:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-11-12 22:53:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2021-11-12 22:53:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 821 states have (on average 1.2034104750304506) internal successors, (988), 865 states have internal predecessors, (988), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:37,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1744 transitions. [2021-11-12 22:53:37,195 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1744 transitions. Word has length 89 [2021-11-12 22:53:37,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:37,196 INFO L470 AbstractCegarLoop]: Abstraction has 1319 states and 1744 transitions. [2021-11-12 22:53:37,196 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, (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 22:53:37,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1744 transitions. [2021-11-12 22:53:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-12 22:53:37,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:37,201 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:37,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:37,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:37,414 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1850145999, now seen corresponding path program 1 times [2021-11-12 22:53:37,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:37,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434862142] [2021-11-12 22:53:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:37,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:37,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:37,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:37,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:53:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:39,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:39,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:39,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:40,128 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:40,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434862142] [2021-11-12 22:53:40,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434862142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:40,128 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:40,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:40,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416908853] [2021-11-12 22:53:40,129 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:40,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:40,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:40,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:40,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:40,130 INFO L87 Difference]: Start difference. First operand 1319 states and 1744 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, (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 22:53:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:40,259 INFO L93 Difference]: Finished difference Result 1319 states and 1744 transitions. [2021-11-12 22:53:40,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:40,260 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, (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 95 [2021-11-12 22:53:40,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:40,297 INFO L225 Difference]: With dead ends: 1319 [2021-11-12 22:53:40,297 INFO L226 Difference]: Without dead ends: 1317 [2021-11-12 22:53:40,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 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 22:53:40,299 INFO L933 BasicCegarLoop]: 1740 mSDtfsCounter, 1667 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:40,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1669 Valid, 3478 Invalid, 2 Unknown, 0 Unchecked, 12.65ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.50ms Time] [2021-11-12 22:53:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2021-11-12 22:53:40,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1317. [2021-11-12 22:53:40,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 820 states have (on average 1.2024390243902439) internal successors, (986), 863 states have internal predecessors, (986), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1742 transitions. [2021-11-12 22:53:40,393 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1742 transitions. Word has length 95 [2021-11-12 22:53:40,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:40,394 INFO L470 AbstractCegarLoop]: Abstraction has 1317 states and 1742 transitions. [2021-11-12 22:53:40,395 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, (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 22:53:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1742 transitions. [2021-11-12 22:53:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-12 22:53:40,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:40,400 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:40,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:40,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:40,614 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:40,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:40,615 INFO L85 PathProgramCache]: Analyzing trace with hash 563647099, now seen corresponding path program 1 times [2021-11-12 22:53:40,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:40,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462999145] [2021-11-12 22:53:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:40,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:40,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:40,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:53:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:42,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:42,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:42,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:43,133 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:43,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462999145] [2021-11-12 22:53:43,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462999145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:43,134 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:43,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:43,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479804765] [2021-11-12 22:53:43,134 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:43,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:43,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:43,136 INFO L87 Difference]: Start difference. First operand 1317 states and 1742 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, (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 22:53:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:43,267 INFO L93 Difference]: Finished difference Result 1317 states and 1742 transitions. [2021-11-12 22:53:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:43,267 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, (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 101 [2021-11-12 22:53:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:43,278 INFO L225 Difference]: With dead ends: 1317 [2021-11-12 22:53:43,278 INFO L226 Difference]: Without dead ends: 1315 [2021-11-12 22:53:43,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:43,280 INFO L933 BasicCegarLoop]: 1738 mSDtfsCounter, 1656 mSDsluCounter, 3472 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 5210 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.96ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:43,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1658 Valid, 5210 Invalid, 2 Unknown, 0 Unchecked, 14.96ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.00ms Time] [2021-11-12 22:53:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2021-11-12 22:53:43,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1315. [2021-11-12 22:53:43,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 819 states have (on average 1.2014652014652014) internal successors, (984), 861 states have internal predecessors, (984), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1740 transitions. [2021-11-12 22:53:43,395 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1740 transitions. Word has length 101 [2021-11-12 22:53:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:43,396 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1740 transitions. [2021-11-12 22:53:43,397 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, (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 22:53:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1740 transitions. [2021-11-12 22:53:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-12 22:53:43,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:43,399 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:43,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:43,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:43,614 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:43,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:43,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1601872394, now seen corresponding path program 1 times [2021-11-12 22:53:43,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:43,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106563599] [2021-11-12 22:53:43,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:43,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:43,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:43,617 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:43,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:53:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:45,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:45,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:45,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:46,133 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:46,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106563599] [2021-11-12 22:53:46,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106563599] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:46,134 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:46,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:46,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286152742] [2021-11-12 22:53:46,134 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:46,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:46,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:46,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:46,136 INFO L87 Difference]: Start difference. First operand 1315 states and 1740 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, (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 22:53:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:46,262 INFO L93 Difference]: Finished difference Result 1315 states and 1740 transitions. [2021-11-12 22:53:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:46,263 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, (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 107 [2021-11-12 22:53:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:46,273 INFO L225 Difference]: With dead ends: 1315 [2021-11-12 22:53:46,273 INFO L226 Difference]: Without dead ends: 1313 [2021-11-12 22:53:46,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:46,275 INFO L933 BasicCegarLoop]: 1736 mSDtfsCounter, 1651 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.83ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:46,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 3470 Invalid, 2 Unknown, 0 Unchecked, 11.63ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.83ms Time] [2021-11-12 22:53:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2021-11-12 22:53:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2021-11-12 22:53:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 818 states have (on average 1.2004889975550121) internal successors, (982), 859 states have internal predecessors, (982), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1738 transitions. [2021-11-12 22:53:46,378 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1738 transitions. Word has length 107 [2021-11-12 22:53:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:46,379 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 1738 transitions. [2021-11-12 22:53:46,379 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, (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 22:53:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1738 transitions. [2021-11-12 22:53:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 22:53:46,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:46,382 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:46,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:46,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:46,598 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1879168082, now seen corresponding path program 1 times [2021-11-12 22:53:46,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:46,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386277253] [2021-11-12 22:53:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:46,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:46,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:46,601 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:46,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:53:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:48,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:48,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:48,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:49,142 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:49,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386277253] [2021-11-12 22:53:49,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386277253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:49,142 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:49,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:49,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237376547] [2021-11-12 22:53:49,143 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:49,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:49,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:49,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:49,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:49,144 INFO L87 Difference]: Start difference. First operand 1313 states and 1738 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 22:53:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:49,272 INFO L93 Difference]: Finished difference Result 1313 states and 1738 transitions. [2021-11-12 22:53:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 113 [2021-11-12 22:53:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:49,283 INFO L225 Difference]: With dead ends: 1313 [2021-11-12 22:53:49,284 INFO L226 Difference]: Without dead ends: 1311 [2021-11-12 22:53:49,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:49,285 INFO L933 BasicCegarLoop]: 1734 mSDtfsCounter, 1651 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:49,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 3462 Invalid, 2 Unknown, 0 Unchecked, 10.48ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.59ms Time] [2021-11-12 22:53:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2021-11-12 22:53:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1311. [2021-11-12 22:53:49,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 817 states have (on average 1.1995104039167688) internal successors, (980), 857 states have internal predecessors, (980), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-11-12 22:53:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1736 transitions. [2021-11-12 22:53:49,432 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1736 transitions. Word has length 113 [2021-11-12 22:53:49,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:49,433 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 1736 transitions. [2021-11-12 22:53:49,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 22:53:49,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1736 transitions. [2021-11-12 22:53:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-12 22:53:49,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:49,437 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 22:53:49,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:49,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:49,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:49,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash 359350777, now seen corresponding path program 1 times [2021-11-12 22:53:49,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:49,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403377049] [2021-11-12 22:53:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:49,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:49,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:49,653 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:49,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:53:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:51,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:53:51,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-12 22:53:52,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2021-11-12 22:53:52,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:52,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403377049] [2021-11-12 22:53:52,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403377049] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:53:52,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:53:52,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-12 22:53:52,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847328379] [2021-11-12 22:53:52,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:52,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:53:52,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:53:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:53:52,550 INFO L87 Difference]: Start difference. First operand 1311 states and 1736 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-12 22:53:53,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:53,955 INFO L93 Difference]: Finished difference Result 3054 states and 4154 transitions. [2021-11-12 22:53:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:53:53,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 155 [2021-11-12 22:53:53,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:53,971 INFO L225 Difference]: With dead ends: 3054 [2021-11-12 22:53:53,971 INFO L226 Difference]: Without dead ends: 1758 [2021-11-12 22:53:53,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:53:53,981 INFO L933 BasicCegarLoop]: 1882 mSDtfsCounter, 682 mSDsluCounter, 7126 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 945.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 9008 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.77ms SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1120.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:53,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 9008 Invalid, 567 Unknown, 0 Unchecked, 30.77ms Time], IncrementalHoareTripleChecker [358 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 1120.78ms Time] [2021-11-12 22:53:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2021-11-12 22:53:54,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1315. [2021-11-12 22:53:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 820 states have (on average 1.198780487804878) internal successors, (983), 860 states have internal predecessors, (983), 380 states have call successors, (380), 94 states have call predecessors, (380), 93 states have return successors, (378), 376 states have call predecessors, (378), 378 states have call successors, (378) [2021-11-12 22:53:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1741 transitions. [2021-11-12 22:53:54,131 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1741 transitions. Word has length 155 [2021-11-12 22:53:54,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:54,132 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1741 transitions. [2021-11-12 22:53:54,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-12 22:53:54,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1741 transitions. [2021-11-12 22:53:54,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 22:53:54,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:54,135 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:54,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:54,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:54,350 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:54,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:54,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1994394965, now seen corresponding path program 1 times [2021-11-12 22:53:54,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:54,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176757552] [2021-11-12 22:53:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:54,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:54,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:54,353 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:54,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:53:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:55,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:55,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:56,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:53:57,003 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:57,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176757552] [2021-11-12 22:53:57,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176757552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:57,003 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:57,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:57,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752663501] [2021-11-12 22:53:57,004 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:57,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:57,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:57,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:57,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:57,005 INFO L87 Difference]: Start difference. First operand 1315 states and 1741 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 22:53:57,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:57,152 INFO L93 Difference]: Finished difference Result 1315 states and 1741 transitions. [2021-11-12 22:53:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:57,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 115 [2021-11-12 22:53:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:57,163 INFO L225 Difference]: With dead ends: 1315 [2021-11-12 22:53:57,163 INFO L226 Difference]: Without dead ends: 1313 [2021-11-12 22:53:57,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:57,165 INFO L933 BasicCegarLoop]: 1732 mSDtfsCounter, 1636 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:57,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1638 Valid, 5192 Invalid, 2 Unknown, 0 Unchecked, 13.01ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.97ms Time] [2021-11-12 22:53:57,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2021-11-12 22:53:57,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2021-11-12 22:53:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 819 states have (on average 1.1978021978021978) internal successors, (981), 858 states have internal predecessors, (981), 380 states have call successors, (380), 94 states have call predecessors, (380), 93 states have return successors, (378), 376 states have call predecessors, (378), 378 states have call successors, (378) [2021-11-12 22:53:57,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1739 transitions. [2021-11-12 22:53:57,291 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1739 transitions. Word has length 115 [2021-11-12 22:53:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:57,292 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 1739 transitions. [2021-11-12 22:53:57,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 22:53:57,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1739 transitions. [2021-11-12 22:53:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-12 22:53:57,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:57,295 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 22:53:57,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:57,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:57,510 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:53:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:57,511 INFO L85 PathProgramCache]: Analyzing trace with hash 769961143, now seen corresponding path program 1 times [2021-11-12 22:53:57,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:57,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743140845] [2021-11-12 22:53:57,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:57,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:57,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:57,513 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:57,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:53:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:59,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:53:59,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 22:53:59,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 22:54:00,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:00,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743140845] [2021-11-12 22:54:00,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743140845] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:00,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [716691494] [2021-11-12 22:54:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:00,706 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:00,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:00,711 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:00,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 22:54:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:01,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:01,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 22:54:02,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 22:54:02,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [716691494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:02,476 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:54:02,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-12 22:54:02,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265504648] [2021-11-12 22:54:02,477 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:02,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:02,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:02,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:54:02,478 INFO L87 Difference]: Start difference. First operand 1313 states and 1739 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-12 22:54:04,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:04,178 INFO L93 Difference]: Finished difference Result 2422 states and 3184 transitions. [2021-11-12 22:54:04,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:54:04,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 155 [2021-11-12 22:54:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:04,190 INFO L225 Difference]: With dead ends: 2422 [2021-11-12 22:54:04,190 INFO L226 Difference]: Without dead ends: 1309 [2021-11-12 22:54:04,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:54:04,196 INFO L933 BasicCegarLoop]: 1728 mSDtfsCounter, 2677 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1216.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.05ms SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1507.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:04,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2677 Valid, 1728 Invalid, 757 Unknown, 0 Unchecked, 13.05ms Time], IncrementalHoareTripleChecker [756 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1507.27ms Time] [2021-11-12 22:54:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-11-12 22:54:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1309. [2021-11-12 22:54:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 816 states have (on average 1.196078431372549) internal successors, (976), 854 states have internal predecessors, (976), 380 states have call successors, (380), 94 states have call predecessors, (380), 93 states have return successors, (378), 376 states have call predecessors, (378), 378 states have call successors, (378) [2021-11-12 22:54:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1734 transitions. [2021-11-12 22:54:04,317 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1734 transitions. Word has length 155 [2021-11-12 22:54:04,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:04,318 INFO L470 AbstractCegarLoop]: Abstraction has 1309 states and 1734 transitions. [2021-11-12 22:54:04,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-12 22:54:04,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1734 transitions. [2021-11-12 22:54:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 22:54:04,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:04,320 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:04,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:04,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:04,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:04,731 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash 643981153, now seen corresponding path program 1 times [2021-11-12 22:54:04,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:04,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137007275] [2021-11-12 22:54:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:04,733 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:04,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:04,735 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:04,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:54:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:06,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:06,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:54:06,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:54:07,275 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:07,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137007275] [2021-11-12 22:54:07,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137007275] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:07,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:07,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:54:07,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460081324] [2021-11-12 22:54:07,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:07,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:07,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:07,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:07,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:07,277 INFO L87 Difference]: Start difference. First operand 1309 states and 1734 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, (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 22:54:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:07,416 INFO L93 Difference]: Finished difference Result 1309 states and 1734 transitions. [2021-11-12 22:54:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:07,417 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, (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 121 [2021-11-12 22:54:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:07,428 INFO L225 Difference]: With dead ends: 1309 [2021-11-12 22:54:07,428 INFO L226 Difference]: Without dead ends: 1307 [2021-11-12 22:54:07,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:07,430 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 1623 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 5171 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:07,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1625 Valid, 5171 Invalid, 2 Unknown, 0 Unchecked, 11.76ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 3.87ms Time] [2021-11-12 22:54:07,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-11-12 22:54:07,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1307. [2021-11-12 22:54:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 815 states have (on average 1.1950920245398773) internal successors, (974), 852 states have internal predecessors, (974), 380 states have call successors, (380), 94 states have call predecessors, (380), 93 states have return successors, (378), 376 states have call predecessors, (378), 378 states have call successors, (378) [2021-11-12 22:54:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1732 transitions. [2021-11-12 22:54:07,616 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1732 transitions. Word has length 121 [2021-11-12 22:54:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:07,617 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 1732 transitions. [2021-11-12 22:54:07,618 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, (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 22:54:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1732 transitions. [2021-11-12 22:54:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-12 22:54:07,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:07,621 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 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] [2021-11-12 22:54:07,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:07,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:07,834 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:07,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1614971203, now seen corresponding path program 1 times [2021-11-12 22:54:07,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:07,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968139491] [2021-11-12 22:54:07,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:07,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:07,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:07,837 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:07,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:54:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:09,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:54:09,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-12 22:54:10,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:54:12,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:12,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968139491] [2021-11-12 22:54:12,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968139491] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:54:12,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:54:12,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [18] total 33 [2021-11-12 22:54:12,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487540302] [2021-11-12 22:54:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:12,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 22:54:12,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 22:54:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=977, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:54:12,385 INFO L87 Difference]: Start difference. First operand 1307 states and 1732 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 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 22:54:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:15,513 INFO L93 Difference]: Finished difference Result 2207 states and 2881 transitions. [2021-11-12 22:54:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:54:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 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 153 [2021-11-12 22:54:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:15,534 INFO L225 Difference]: With dead ends: 2207 [2021-11-12 22:54:15,534 INFO L226 Difference]: Without dead ends: 1347 [2021-11-12 22:54:15,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=289, Invalid=1691, Unknown=0, NotChecked=0, Total=1980 [2021-11-12 22:54:15,541 INFO L933 BasicCegarLoop]: 1714 mSDtfsCounter, 88 mSDsluCounter, 27156 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1677.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 28870 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.16ms SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1852.01ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:15,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 28870 Invalid, 1011 Unknown, 0 Unchecked, 56.16ms Time], IncrementalHoareTripleChecker [277 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1852.01ms Time] [2021-11-12 22:54:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2021-11-12 22:54:15,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1323. [2021-11-12 22:54:15,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 826 states have (on average 1.1924939467312348) internal successors, (985), 863 states have internal predecessors, (985), 385 states have call successors, (385), 94 states have call predecessors, (385), 93 states have return successors, (383), 381 states have call predecessors, (383), 383 states have call successors, (383) [2021-11-12 22:54:15,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1753 transitions. [2021-11-12 22:54:15,684 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1753 transitions. Word has length 153 [2021-11-12 22:54:15,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:15,684 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 1753 transitions. [2021-11-12 22:54:15,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 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 22:54:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1753 transitions. [2021-11-12 22:54:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-12 22:54:15,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:15,688 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 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] [2021-11-12 22:54:15,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:15,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:15,910 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:15,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:15,911 INFO L85 PathProgramCache]: Analyzing trace with hash -520911999, now seen corresponding path program 1 times [2021-11-12 22:54:15,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:15,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549442052] [2021-11-12 22:54:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:15,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:15,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:15,914 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:15,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:54:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:17,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:54:17,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-11-12 22:54:18,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-12 22:54:18,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:18,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549442052] [2021-11-12 22:54:18,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549442052] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:54:18,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:54:18,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-12 22:54:18,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033375098] [2021-11-12 22:54:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:18,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:18,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:18,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:18,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:54:18,516 INFO L87 Difference]: Start difference. First operand 1323 states and 1753 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-12 22:54:19,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:19,809 INFO L93 Difference]: Finished difference Result 2249 states and 2945 transitions. [2021-11-12 22:54:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:54:19,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2021-11-12 22:54:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:19,819 INFO L225 Difference]: With dead ends: 2249 [2021-11-12 22:54:19,819 INFO L226 Difference]: Without dead ends: 1345 [2021-11-12 22:54:19,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:54:19,823 INFO L933 BasicCegarLoop]: 1765 mSDtfsCounter, 918 mSDsluCounter, 5617 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 872.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.39ms SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1061.54ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:19,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 7382 Invalid, 664 Unknown, 0 Unchecked, 14.39ms Time], IncrementalHoareTripleChecker [482 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1061.54ms Time] [2021-11-12 22:54:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2021-11-12 22:54:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1321. [2021-11-12 22:54:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 825 states have (on average 1.1915151515151514) internal successors, (983), 862 states have internal predecessors, (983), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:54:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1749 transitions. [2021-11-12 22:54:19,940 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1749 transitions. Word has length 153 [2021-11-12 22:54:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:19,940 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1749 transitions. [2021-11-12 22:54:19,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-12 22:54:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1749 transitions. [2021-11-12 22:54:19,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 22:54:19,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:19,943 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 22:54:19,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:20,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:20,166 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:20,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1714031930, now seen corresponding path program 1 times [2021-11-12 22:54:20,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:20,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560829646] [2021-11-12 22:54:20,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:20,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:20,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:20,169 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:20,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:54:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:21,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:54:21,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-12 22:54:22,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-12 22:54:23,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:23,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560829646] [2021-11-12 22:54:23,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560829646] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:23,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1907120151] [2021-11-12 22:54:23,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:23,326 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:23,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:23,326 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:23,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-12 22:54:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:24,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:24,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 22:54:24,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 22:54:25,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1907120151] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:25,397 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:54:25,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-12 22:54:25,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039655002] [2021-11-12 22:54:25,398 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:25,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:25,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:25,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:25,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:54:25,400 INFO L87 Difference]: Start difference. First operand 1321 states and 1749 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 22:54:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:26,804 INFO L93 Difference]: Finished difference Result 2432 states and 3191 transitions. [2021-11-12 22:54:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:54:26,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2021-11-12 22:54:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:26,815 INFO L225 Difference]: With dead ends: 2432 [2021-11-12 22:54:26,815 INFO L226 Difference]: Without dead ends: 1328 [2021-11-12 22:54:26,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:54:26,821 INFO L933 BasicCegarLoop]: 1736 mSDtfsCounter, 2652 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 992.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.11ms SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1264.64ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:26,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 1758 Invalid, 757 Unknown, 0 Unchecked, 8.11ms Time], IncrementalHoareTripleChecker [755 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1264.64ms Time] [2021-11-12 22:54:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2021-11-12 22:54:26,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1327. [2021-11-12 22:54:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 829 states have (on average 1.1881785283474064) internal successors, (985), 865 states have internal predecessors, (985), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:54:26,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1751 transitions. [2021-11-12 22:54:26,961 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1751 transitions. Word has length 161 [2021-11-12 22:54:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:26,962 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1751 transitions. [2021-11-12 22:54:26,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 22:54:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1751 transitions. [2021-11-12 22:54:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-12 22:54:26,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:26,965 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:26,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:27,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:27,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:27,375 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:27,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash -436354794, now seen corresponding path program 1 times [2021-11-12 22:54:27,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:27,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105383190] [2021-11-12 22:54:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:27,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:27,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:27,378 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:27,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:54:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:29,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:54:29,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 22:54:29,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 22:54:30,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:30,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105383190] [2021-11-12 22:54:30,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105383190] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:30,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1147646719] [2021-11-12 22:54:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:30,656 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:30,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:30,657 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:30,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-12 22:54:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:31,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:54:31,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 22:54:32,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 22:54:33,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1147646719] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:33,352 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:54:33,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [8, 8] total 14 [2021-11-12 22:54:33,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058018773] [2021-11-12 22:54:33,353 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:33,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:54:33,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:33,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:54:33,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:54:33,355 INFO L87 Difference]: Start difference. First operand 1327 states and 1751 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 22:54:35,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:37,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:42,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:42,433 INFO L93 Difference]: Finished difference Result 2573 states and 3415 transitions. [2021-11-12 22:54:42,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:42,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 166 [2021-11-12 22:54:42,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:42,446 INFO L225 Difference]: With dead ends: 2573 [2021-11-12 22:54:42,447 INFO L226 Difference]: Without dead ends: 1327 [2021-11-12 22:54:42,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:54:42,455 INFO L933 BasicCegarLoop]: 1718 mSDtfsCounter, 1647 mSDsluCounter, 5348 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8256.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.30ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8760.79ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:42,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1652 Valid, 7066 Invalid, 1527 Unknown, 0 Unchecked, 28.30ms Time], IncrementalHoareTripleChecker [1 Valid, 1524 Invalid, 2 Unknown, 0 Unchecked, 8760.79ms Time] [2021-11-12 22:54:42,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2021-11-12 22:54:42,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1327. [2021-11-12 22:54:42,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 829 states have (on average 1.186972255729795) internal successors, (984), 865 states have internal predecessors, (984), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:54:42,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1750 transitions. [2021-11-12 22:54:42,616 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1750 transitions. Word has length 166 [2021-11-12 22:54:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:42,616 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1750 transitions. [2021-11-12 22:54:42,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 22:54:42,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1750 transitions. [2021-11-12 22:54:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-12 22:54:42,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:42,619 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:42,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:42,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-11-12 22:54:43,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:43,034 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash -436295212, now seen corresponding path program 1 times [2021-11-12 22:54:43,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:43,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840190033] [2021-11-12 22:54:43,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:43,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:43,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:43,039 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:43,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 22:54:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:44,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 22:54:44,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:45,784 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 22:54:45,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 22:54:46,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:46,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840190033] [2021-11-12 22:54:46,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840190033] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:46,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1201383367] [2021-11-12 22:54:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:46,526 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:46,528 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:46,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-12 22:54:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:49,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:54:49,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-11-12 22:54:50,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-12 22:54:50,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1201383367] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:54:50,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:54:50,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-12 22:54:50,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977589635] [2021-11-12 22:54:50,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:50,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:50,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:50,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:50,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:54:50,694 INFO L87 Difference]: Start difference. First operand 1327 states and 1750 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 22:54:50,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:50,934 INFO L93 Difference]: Finished difference Result 2627 states and 3482 transitions. [2021-11-12 22:54:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 166 [2021-11-12 22:54:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:50,946 INFO L225 Difference]: With dead ends: 2627 [2021-11-12 22:54:50,946 INFO L226 Difference]: Without dead ends: 1349 [2021-11-12 22:54:50,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:54:50,953 INFO L933 BasicCegarLoop]: 1777 mSDtfsCounter, 449 mSDsluCounter, 6415 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 8192 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.16ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:50,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 8192 Invalid, 12 Unknown, 0 Unchecked, 13.68ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 45.16ms Time] [2021-11-12 22:54:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2021-11-12 22:54:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1327. [2021-11-12 22:54:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 829 states have (on average 1.1857659831121834) internal successors, (983), 864 states have internal predecessors, (983), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:54:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1749 transitions. [2021-11-12 22:54:51,148 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1749 transitions. Word has length 166 [2021-11-12 22:54:51,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:51,149 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1749 transitions. [2021-11-12 22:54:51,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 22:54:51,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1749 transitions. [2021-11-12 22:54:51,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-12 22:54:51,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:51,151 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:51,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:51,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:51,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:51,553 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:51,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:51,553 INFO L85 PathProgramCache]: Analyzing trace with hash 740581819, now seen corresponding path program 1 times [2021-11-12 22:54:51,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:51,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974135322] [2021-11-12 22:54:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:51,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:51,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:51,556 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:51,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 22:54:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:53,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:53,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:54:54,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:54:54,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:54,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974135322] [2021-11-12 22:54:54,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974135322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:54,499 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:54,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:54:54,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633446400] [2021-11-12 22:54:54,499 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:54,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:54,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:54,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:54,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:54,500 INFO L87 Difference]: Start difference. First operand 1327 states and 1749 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, (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 22:54:54,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:54,613 INFO L93 Difference]: Finished difference Result 1327 states and 1749 transitions. [2021-11-12 22:54:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:54,613 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, (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 127 [2021-11-12 22:54:54,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:54,624 INFO L225 Difference]: With dead ends: 1327 [2021-11-12 22:54:54,624 INFO L226 Difference]: Without dead ends: 1325 [2021-11-12 22:54:54,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:54,625 INFO L933 BasicCegarLoop]: 1716 mSDtfsCounter, 1611 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:54,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1613 Valid, 3430 Invalid, 2 Unknown, 0 Unchecked, 4.98ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 3.82ms Time] [2021-11-12 22:54:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2021-11-12 22:54:54,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2021-11-12 22:54:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 828 states have (on average 1.184782608695652) internal successors, (981), 862 states have internal predecessors, (981), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:54:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1747 transitions. [2021-11-12 22:54:54,838 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1747 transitions. Word has length 127 [2021-11-12 22:54:54,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:54,839 INFO L470 AbstractCegarLoop]: Abstraction has 1325 states and 1747 transitions. [2021-11-12 22:54:54,839 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, (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 22:54:54,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1747 transitions. [2021-11-12 22:54:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-12 22:54:54,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:54,841 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:54,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:55,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:55,054 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:54:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1117202871, now seen corresponding path program 1 times [2021-11-12 22:54:55,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:55,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054708688] [2021-11-12 22:54:55,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:55,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:55,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:55,058 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:55,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 22:54:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:57,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:54:57,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-12 22:54:58,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-12 22:55:00,874 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:00,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054708688] [2021-11-12 22:55:00,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054708688] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:55:00,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:55:00,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 20 [2021-11-12 22:55:00,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816443597] [2021-11-12 22:55:00,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:00,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 22:55:00,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:00,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 22:55:00,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:55:00,877 INFO L87 Difference]: Start difference. First operand 1325 states and 1747 transitions. Second operand has 13 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-12 22:55:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:02,756 INFO L93 Difference]: Finished difference Result 2620 states and 3471 transitions. [2021-11-12 22:55:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:55:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) Word has length 170 [2021-11-12 22:55:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:02,769 INFO L225 Difference]: With dead ends: 2620 [2021-11-12 22:55:02,769 INFO L226 Difference]: Without dead ends: 1349 [2021-11-12 22:55:02,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:55:02,776 INFO L933 BasicCegarLoop]: 1741 mSDtfsCounter, 452 mSDsluCounter, 13189 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1057.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 14930 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.98ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1165.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:02,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 14930 Invalid, 390 Unknown, 0 Unchecked, 24.98ms Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1165.97ms Time] [2021-11-12 22:55:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2021-11-12 22:55:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1325. [2021-11-12 22:55:02,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 828 states have (on average 1.183574879227053) internal successors, (980), 861 states have internal predecessors, (980), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1746 transitions. [2021-11-12 22:55:02,983 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1746 transitions. Word has length 170 [2021-11-12 22:55:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:02,986 INFO L470 AbstractCegarLoop]: Abstraction has 1325 states and 1746 transitions. [2021-11-12 22:55:02,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-12 22:55:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1746 transitions. [2021-11-12 22:55:02,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-12 22:55:02,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:02,989 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 22:55:03,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:03,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:03,214 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1981740364, now seen corresponding path program 1 times [2021-11-12 22:55:03,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:03,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147075506] [2021-11-12 22:55:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:03,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:03,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:03,218 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:03,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 22:55:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:05,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:05,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 22:55:05,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 22:55:06,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:06,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147075506] [2021-11-12 22:55:06,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147075506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:06,235 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:06,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:55:06,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293376475] [2021-11-12 22:55:06,236 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:06,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:55:06,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:55:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:06,238 INFO L87 Difference]: Start difference. First operand 1325 states and 1746 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-12 22:55:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:06,494 INFO L93 Difference]: Finished difference Result 1325 states and 1746 transitions. [2021-11-12 22:55:06,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:06,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 174 [2021-11-12 22:55:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:06,503 INFO L225 Difference]: With dead ends: 1325 [2021-11-12 22:55:06,503 INFO L226 Difference]: Without dead ends: 1323 [2021-11-12 22:55:06,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 342 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 22:55:06,505 INFO L933 BasicCegarLoop]: 1713 mSDtfsCounter, 10 mSDsluCounter, 5129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6842 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:06,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 6842 Invalid, 4 Unknown, 0 Unchecked, 7.56ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 11.99ms Time] [2021-11-12 22:55:06,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2021-11-12 22:55:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1323. [2021-11-12 22:55:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 827 states have (on average 1.1825876662636035) internal successors, (978), 859 states have internal predecessors, (978), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1744 transitions. [2021-11-12 22:55:06,679 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1744 transitions. Word has length 174 [2021-11-12 22:55:06,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:06,679 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 1744 transitions. [2021-11-12 22:55:06,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-12 22:55:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1744 transitions. [2021-11-12 22:55:06,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 22:55:06,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:06,682 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:06,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:06,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:06,906 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1879104377, now seen corresponding path program 1 times [2021-11-12 22:55:06,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:06,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723077124] [2021-11-12 22:55:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:06,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:06,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:06,910 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:06,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 22:55:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:08,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:08,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:09,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:09,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:09,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723077124] [2021-11-12 22:55:09,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723077124] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:09,736 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:09,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:09,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016485997] [2021-11-12 22:55:09,737 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:09,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:09,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:09,738 INFO L87 Difference]: Start difference. First operand 1323 states and 1744 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, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 22:55:09,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:09,912 INFO L93 Difference]: Finished difference Result 1323 states and 1744 transitions. [2021-11-12 22:55:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:09,913 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, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 133 [2021-11-12 22:55:09,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:09,934 INFO L225 Difference]: With dead ends: 1323 [2021-11-12 22:55:09,934 INFO L226 Difference]: Without dead ends: 1321 [2021-11-12 22:55:09,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:09,938 INFO L933 BasicCegarLoop]: 1711 mSDtfsCounter, 1600 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.33ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:09,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 3420 Invalid, 2 Unknown, 0 Unchecked, 6.51ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.33ms Time] [2021-11-12 22:55:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-11-12 22:55:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1321. [2021-11-12 22:55:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 826 states have (on average 1.181598062953995) internal successors, (976), 857 states have internal predecessors, (976), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1742 transitions. [2021-11-12 22:55:10,169 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1742 transitions. Word has length 133 [2021-11-12 22:55:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:10,170 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1742 transitions. [2021-11-12 22:55:10,171 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, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 22:55:10,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1742 transitions. [2021-11-12 22:55:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-12 22:55:10,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:10,178 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 22:55:10,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:10,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:10,402 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:10,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:10,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2084022142, now seen corresponding path program 1 times [2021-11-12 22:55:10,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:10,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865048832] [2021-11-12 22:55:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:10,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:10,407 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:10,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:55:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:12,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:55:12,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:13,736 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 22:55:13,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 22:55:14,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:14,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865048832] [2021-11-12 22:55:14,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865048832] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:14,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:14,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 22:55:14,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835958985] [2021-11-12 22:55:14,262 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:14,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:55:14,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:14,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:55:14,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:55:14,264 INFO L87 Difference]: Start difference. First operand 1321 states and 1742 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-12 22:55:15,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:15,703 INFO L93 Difference]: Finished difference Result 2557 states and 3395 transitions. [2021-11-12 22:55:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:55:15,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 181 [2021-11-12 22:55:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:15,713 INFO L225 Difference]: With dead ends: 2557 [2021-11-12 22:55:15,714 INFO L226 Difference]: Without dead ends: 1317 [2021-11-12 22:55:15,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 358 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 22:55:15,720 INFO L933 BasicCegarLoop]: 1707 mSDtfsCounter, 2539 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 974.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.47ms SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1234.81ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:15,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2539 Valid, 1707 Invalid, 740 Unknown, 0 Unchecked, 8.47ms Time], IncrementalHoareTripleChecker [739 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1234.81ms Time] [2021-11-12 22:55:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2021-11-12 22:55:15,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1317. [2021-11-12 22:55:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 823 states have (on average 1.1798298906439855) internal successors, (971), 853 states have internal predecessors, (971), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1737 transitions. [2021-11-12 22:55:15,901 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1737 transitions. Word has length 181 [2021-11-12 22:55:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:15,902 INFO L470 AbstractCegarLoop]: Abstraction has 1317 states and 1737 transitions. [2021-11-12 22:55:15,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-12 22:55:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1737 transitions. [2021-11-12 22:55:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-12 22:55:15,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:15,904 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:15,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:16,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:16,106 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:16,107 INFO L85 PathProgramCache]: Analyzing trace with hash 187184413, now seen corresponding path program 1 times [2021-11-12 22:55:16,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:16,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048052702] [2021-11-12 22:55:16,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:16,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:16,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:16,110 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:16,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-12 22:55:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:17,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:17,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:18,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:19,003 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:19,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048052702] [2021-11-12 22:55:19,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048052702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:19,003 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:19,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:19,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735913942] [2021-11-12 22:55:19,004 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:19,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:19,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:19,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:19,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:19,005 INFO L87 Difference]: Start difference. First operand 1317 states and 1737 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, (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 22:55:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:19,167 INFO L93 Difference]: Finished difference Result 1317 states and 1737 transitions. [2021-11-12 22:55:19,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:19,167 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, (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 139 [2021-11-12 22:55:19,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:19,173 INFO L225 Difference]: With dead ends: 1317 [2021-11-12 22:55:19,173 INFO L226 Difference]: Without dead ends: 1315 [2021-11-12 22:55:19,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:19,175 INFO L933 BasicCegarLoop]: 1704 mSDtfsCounter, 1584 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 5108 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.39ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:19,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1586 Valid, 5108 Invalid, 2 Unknown, 0 Unchecked, 7.20ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.39ms Time] [2021-11-12 22:55:19,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2021-11-12 22:55:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1315. [2021-11-12 22:55:19,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 822 states have (on average 1.1788321167883211) internal successors, (969), 851 states have internal predecessors, (969), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1735 transitions. [2021-11-12 22:55:19,406 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1735 transitions. Word has length 139 [2021-11-12 22:55:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:19,407 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1735 transitions. [2021-11-12 22:55:19,407 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, (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 22:55:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1735 transitions. [2021-11-12 22:55:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-12 22:55:19,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:19,410 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:19,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:19,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:19,634 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:19,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash -814328027, now seen corresponding path program 1 times [2021-11-12 22:55:19,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:19,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809810425] [2021-11-12 22:55:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:19,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:19,640 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:19,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 22:55:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:21,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:21,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:22,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:22,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:22,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809810425] [2021-11-12 22:55:22,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809810425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:22,905 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:22,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:22,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428808773] [2021-11-12 22:55:22,905 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:22,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:22,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:22,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:22,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:22,906 INFO L87 Difference]: Start difference. First operand 1315 states and 1735 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 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 22:55:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:23,067 INFO L93 Difference]: Finished difference Result 1315 states and 1735 transitions. [2021-11-12 22:55:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:23,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 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 145 [2021-11-12 22:55:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:23,072 INFO L225 Difference]: With dead ends: 1315 [2021-11-12 22:55:23,072 INFO L226 Difference]: Without dead ends: 1313 [2021-11-12 22:55:23,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:23,074 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 1579 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.28ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:23,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1581 Valid, 3402 Invalid, 2 Unknown, 0 Unchecked, 5.54ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.28ms Time] [2021-11-12 22:55:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2021-11-12 22:55:23,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2021-11-12 22:55:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 821 states have (on average 1.1778319123020706) internal successors, (967), 849 states have internal predecessors, (967), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:23,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1733 transitions. [2021-11-12 22:55:23,265 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1733 transitions. Word has length 145 [2021-11-12 22:55:23,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:23,266 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 1733 transitions. [2021-11-12 22:55:23,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 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 22:55:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1733 transitions. [2021-11-12 22:55:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-12 22:55:23,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:23,269 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:23,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-11-12 22:55:23,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:23,482 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:23,483 INFO L85 PathProgramCache]: Analyzing trace with hash -169133815, now seen corresponding path program 1 times [2021-11-12 22:55:23,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:23,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477821204] [2021-11-12 22:55:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:23,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:23,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:23,487 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:23,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 22:55:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:25,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:25,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:26,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:27,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:27,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477821204] [2021-11-12 22:55:27,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477821204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:27,401 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:27,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 22:55:27,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470434617] [2021-11-12 22:55:27,401 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:27,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:55:27,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:27,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:55:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:27,403 INFO L87 Difference]: Start difference. First operand 1313 states and 1733 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 22:55:27,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:27,684 INFO L93 Difference]: Finished difference Result 1313 states and 1733 transitions. [2021-11-12 22:55:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:27,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 151 [2021-11-12 22:55:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:27,690 INFO L225 Difference]: With dead ends: 1313 [2021-11-12 22:55:27,691 INFO L226 Difference]: Without dead ends: 1311 [2021-11-12 22:55:27,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 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 22:55:27,692 INFO L933 BasicCegarLoop]: 1700 mSDtfsCounter, 1634 mSDsluCounter, 3396 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 5096 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.69ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.11ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:27,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1636 Valid, 5096 Invalid, 26 Unknown, 0 Unchecked, 9.69ms Time], IncrementalHoareTripleChecker [24 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 34.11ms Time] [2021-11-12 22:55:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2021-11-12 22:55:27,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1311. [2021-11-12 22:55:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 820 states have (on average 1.1768292682926829) internal successors, (965), 847 states have internal predecessors, (965), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1731 transitions. [2021-11-12 22:55:27,866 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1731 transitions. Word has length 151 [2021-11-12 22:55:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:27,866 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 1731 transitions. [2021-11-12 22:55:27,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 22:55:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1731 transitions. [2021-11-12 22:55:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 22:55:27,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:27,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:27,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:28,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:28,069 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:28,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash 391651334, now seen corresponding path program 1 times [2021-11-12 22:55:28,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:28,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956808742] [2021-11-12 22:55:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:28,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:28,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:28,073 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:28,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 22:55:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:29,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:29,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:30,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:31,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:31,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956808742] [2021-11-12 22:55:31,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956808742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:31,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:31,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:31,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998396220] [2021-11-12 22:55:31,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:31,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:31,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:31,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:31,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:31,256 INFO L87 Difference]: Start difference. First operand 1311 states and 1731 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, (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 22:55:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:31,429 INFO L93 Difference]: Finished difference Result 1311 states and 1731 transitions. [2021-11-12 22:55:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:31,430 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, (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 157 [2021-11-12 22:55:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:31,435 INFO L225 Difference]: With dead ends: 1311 [2021-11-12 22:55:31,435 INFO L226 Difference]: Without dead ends: 1309 [2021-11-12 22:55:31,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 308 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 22:55:31,437 INFO L933 BasicCegarLoop]: 1698 mSDtfsCounter, 1560 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:31,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1562 Valid, 5090 Invalid, 2 Unknown, 0 Unchecked, 7.02ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.44ms Time] [2021-11-12 22:55:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-11-12 22:55:31,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1309. [2021-11-12 22:55:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 819 states have (on average 1.1758241758241759) internal successors, (963), 845 states have internal predecessors, (963), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1729 transitions. [2021-11-12 22:55:31,676 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1729 transitions. Word has length 157 [2021-11-12 22:55:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:31,676 INFO L470 AbstractCegarLoop]: Abstraction has 1309 states and 1729 transitions. [2021-11-12 22:55:31,677 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, (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 22:55:31,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1729 transitions. [2021-11-12 22:55:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-12 22:55:31,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:31,680 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:31,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:31,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:31,908 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:31,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1817353582, now seen corresponding path program 1 times [2021-11-12 22:55:31,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:31,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963492174] [2021-11-12 22:55:31,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:31,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:31,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:31,915 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:31,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-12 22:55:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:33,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:33,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:34,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:35,339 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:35,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963492174] [2021-11-12 22:55:35,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963492174] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:35,340 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:35,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:35,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685502359] [2021-11-12 22:55:35,341 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:35,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:35,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:35,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:35,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:35,343 INFO L87 Difference]: Start difference. First operand 1309 states and 1729 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, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:55:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:35,535 INFO L93 Difference]: Finished difference Result 1309 states and 1729 transitions. [2021-11-12 22:55:35,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:35,539 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, (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 163 [2021-11-12 22:55:35,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:35,543 INFO L225 Difference]: With dead ends: 1309 [2021-11-12 22:55:35,544 INFO L226 Difference]: Without dead ends: 1307 [2021-11-12 22:55:35,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:35,545 INFO L933 BasicCegarLoop]: 1696 mSDtfsCounter, 1552 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:35,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 5084 Invalid, 2 Unknown, 0 Unchecked, 7.77ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.35ms Time] [2021-11-12 22:55:35,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-11-12 22:55:35,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1307. [2021-11-12 22:55:35,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 818 states have (on average 1.1748166259168704) internal successors, (961), 843 states have internal predecessors, (961), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:35,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1727 transitions. [2021-11-12 22:55:35,754 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1727 transitions. Word has length 163 [2021-11-12 22:55:35,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:35,755 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 1727 transitions. [2021-11-12 22:55:35,755 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, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 22:55:35,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1727 transitions. [2021-11-12 22:55:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 22:55:35,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:35,758 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:35,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-11-12 22:55:35,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:35,975 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:35,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:35,975 INFO L85 PathProgramCache]: Analyzing trace with hash 504818036, now seen corresponding path program 1 times [2021-11-12 22:55:35,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:35,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258319686] [2021-11-12 22:55:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:35,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:35,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:35,979 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:36,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-12 22:55:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:37,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:37,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:38,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:39,412 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:39,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258319686] [2021-11-12 22:55:39,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258319686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:39,413 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:39,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:39,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919125940] [2021-11-12 22:55:39,414 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:39,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:39,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:39,416 INFO L87 Difference]: Start difference. First operand 1307 states and 1727 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, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:55:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:39,602 INFO L93 Difference]: Finished difference Result 1307 states and 1727 transitions. [2021-11-12 22:55:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:39,602 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, (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 169 [2021-11-12 22:55:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:39,609 INFO L225 Difference]: With dead ends: 1307 [2021-11-12 22:55:39,609 INFO L226 Difference]: Without dead ends: 1305 [2021-11-12 22:55:39,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:39,611 INFO L933 BasicCegarLoop]: 1694 mSDtfsCounter, 1547 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 3386 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.46ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:39,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 3386 Invalid, 2 Unknown, 0 Unchecked, 5.60ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.46ms Time] [2021-11-12 22:55:39,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2021-11-12 22:55:39,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2021-11-12 22:55:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 817 states have (on average 1.1738066095471236) internal successors, (959), 841 states have internal predecessors, (959), 384 states have call successors, (384), 97 states have call predecessors, (384), 96 states have return successors, (382), 380 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-12 22:55:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1725 transitions. [2021-11-12 22:55:39,879 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1725 transitions. Word has length 169 [2021-11-12 22:55:39,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:39,880 INFO L470 AbstractCegarLoop]: Abstraction has 1305 states and 1725 transitions. [2021-11-12 22:55:39,881 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, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:55:39,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1725 transitions. [2021-11-12 22:55:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-12 22:55:39,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:39,884 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:55:39,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-11-12 22:55:40,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:40,098 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:40,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:40,099 INFO L85 PathProgramCache]: Analyzing trace with hash -475168194, now seen corresponding path program 1 times [2021-11-12 22:55:40,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:40,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66898927] [2021-11-12 22:55:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:40,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:40,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:40,102 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:40,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-12 22:55:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:42,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 22:55:42,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-11-12 22:55:43,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-12 22:55:45,151 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:45,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66898927] [2021-11-12 22:55:45,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66898927] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:45,151 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:45,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-12 22:55:45,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406605722] [2021-11-12 22:55:45,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:45,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-12 22:55:45,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:45,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-12 22:55:45,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:55:45,154 INFO L87 Difference]: Start difference. First operand 1305 states and 1725 transitions. Second operand has 27 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 10 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-12 22:55:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:50,659 INFO L93 Difference]: Finished difference Result 3284 states and 4547 transitions. [2021-11-12 22:55:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:55:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 10 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 216 [2021-11-12 22:55:50,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:50,671 INFO L225 Difference]: With dead ends: 3284 [2021-11-12 22:55:50,671 INFO L226 Difference]: Without dead ends: 2217 [2021-11-12 22:55:50,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=184, Invalid=1076, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 22:55:50,678 INFO L933 BasicCegarLoop]: 2043 mSDtfsCounter, 4904 mSDsluCounter, 32879 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 2415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3741.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5085 SdHoareTripleChecker+Valid, 34922 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.24ms SdHoareTripleChecker+Time, 2415 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4228.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:50,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5085 Valid, 34922 Invalid, 3523 Unknown, 0 Unchecked, 62.24ms Time], IncrementalHoareTripleChecker [2415 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 4228.66ms Time] [2021-11-12 22:55:50,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2021-11-12 22:55:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 1322. [2021-11-12 22:55:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 829 states have (on average 1.1712907117008444) internal successors, (971), 853 states have internal predecessors, (971), 389 states have call successors, (389), 97 states have call predecessors, (389), 96 states have return successors, (387), 385 states have call predecessors, (387), 387 states have call successors, (387) [2021-11-12 22:55:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1747 transitions. [2021-11-12 22:55:50,919 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1747 transitions. Word has length 216 [2021-11-12 22:55:50,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:50,920 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 1747 transitions. [2021-11-12 22:55:50,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 10 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-12 22:55:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1747 transitions. [2021-11-12 22:55:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-12 22:55:50,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:50,924 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:50,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:51,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:51,138 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -76188561, now seen corresponding path program 1 times [2021-11-12 22:55:51,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:51,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685826559] [2021-11-12 22:55:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:51,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:51,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:51,144 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:51,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-12 22:55:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:53,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:53,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:54,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:54,842 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:54,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685826559] [2021-11-12 22:55:54,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685826559] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:54,842 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:54,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:54,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576268123] [2021-11-12 22:55:54,843 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:54,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:54,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:54,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:54,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:54,844 INFO L87 Difference]: Start difference. First operand 1322 states and 1747 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, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 22:55:55,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:55,072 INFO L93 Difference]: Finished difference Result 1322 states and 1747 transitions. [2021-11-12 22:55:55,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:55,073 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, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 175 [2021-11-12 22:55:55,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:55,077 INFO L225 Difference]: With dead ends: 1322 [2021-11-12 22:55:55,077 INFO L226 Difference]: Without dead ends: 1320 [2021-11-12 22:55:55,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:55:55,079 INFO L933 BasicCegarLoop]: 1692 mSDtfsCounter, 1539 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:55,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 3382 Invalid, 2 Unknown, 0 Unchecked, 5.70ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.41ms Time] [2021-11-12 22:55:55,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2021-11-12 22:55:55,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2021-11-12 22:55:55,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 828 states have (on average 1.1702898550724639) internal successors, (969), 851 states have internal predecessors, (969), 389 states have call successors, (389), 97 states have call predecessors, (389), 96 states have return successors, (387), 385 states have call predecessors, (387), 387 states have call successors, (387) [2021-11-12 22:55:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1745 transitions. [2021-11-12 22:55:55,392 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1745 transitions. Word has length 175 [2021-11-12 22:55:55,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:55,393 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 1745 transitions. [2021-11-12 22:55:55,393 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, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 22:55:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1745 transitions. [2021-11-12 22:55:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-12 22:55:55,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:55,395 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:55,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:55,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:55,606 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:55:55,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:55,607 INFO L85 PathProgramCache]: Analyzing trace with hash -847721913, now seen corresponding path program 1 times [2021-11-12 22:55:55,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:55,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201222208] [2021-11-12 22:55:55,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:55,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:55,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:55,611 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:55,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-12 22:55:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:57,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:57,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:58,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:55:59,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:59,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201222208] [2021-11-12 22:55:59,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201222208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:59,267 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:59,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:55:59,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294866149] [2021-11-12 22:55:59,267 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:59,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:59,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:59,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:59,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:59,268 INFO L87 Difference]: Start difference. First operand 1320 states and 1745 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-12 22:55:59,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:59,535 INFO L93 Difference]: Finished difference Result 1320 states and 1745 transitions. [2021-11-12 22:55:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:55:59,536 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 181 [2021-11-12 22:55:59,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:59,542 INFO L225 Difference]: With dead ends: 1320 [2021-11-12 22:55:59,542 INFO L226 Difference]: Without dead ends: 1318 [2021-11-12 22:55:59,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 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 22:55:59,544 INFO L933 BasicCegarLoop]: 1690 mSDtfsCounter, 1528 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 5066 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:59,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1530 Valid, 5066 Invalid, 2 Unknown, 0 Unchecked, 7.17ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.41ms Time] [2021-11-12 22:55:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2021-11-12 22:55:59,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2021-11-12 22:55:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 827 states have (on average 1.1692865779927448) internal successors, (967), 849 states have internal predecessors, (967), 389 states have call successors, (389), 97 states have call predecessors, (389), 96 states have return successors, (387), 385 states have call predecessors, (387), 387 states have call successors, (387) [2021-11-12 22:55:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1743 transitions. [2021-11-12 22:55:59,892 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1743 transitions. Word has length 181 [2021-11-12 22:55:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:59,893 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 1743 transitions. [2021-11-12 22:55:59,893 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-12 22:55:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1743 transitions. [2021-11-12 22:55:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-12 22:55:59,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:59,896 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:59,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:00,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:00,110 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:00,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:00,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1638684807, now seen corresponding path program 1 times [2021-11-12 22:56:00,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:00,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575326285] [2021-11-12 22:56:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:00,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:00,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:00,115 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:00,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-12 22:56:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:02,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:02,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:56:03,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:56:03,832 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:03,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575326285] [2021-11-12 22:56:03,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575326285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:03,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:03,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:56:03,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68577901] [2021-11-12 22:56:03,832 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:03,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:56:03,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:56:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:03,834 INFO L87 Difference]: Start difference. First operand 1318 states and 1743 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-12 22:56:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:04,309 INFO L93 Difference]: Finished difference Result 2485 states and 3296 transitions. [2021-11-12 22:56:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:04,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 187 [2021-11-12 22:56:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:04,324 INFO L225 Difference]: With dead ends: 2485 [2021-11-12 22:56:04,324 INFO L226 Difference]: Without dead ends: 2300 [2021-11-12 22:56:04,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:56:04,327 INFO L933 BasicCegarLoop]: 2131 mSDtfsCounter, 1517 mSDsluCounter, 5809 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 7940 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.84ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:04,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 7940 Invalid, 18 Unknown, 0 Unchecked, 38.18ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 46.84ms Time] [2021-11-12 22:56:04,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2021-11-12 22:56:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2288. [2021-11-12 22:56:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 1430 states have (on average 1.1818181818181819) internal successors, (1690), 1467 states have internal predecessors, (1690), 688 states have call successors, (688), 164 states have call predecessors, (688), 164 states have return successors, (697), 684 states have call predecessors, (697), 686 states have call successors, (697) [2021-11-12 22:56:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 3075 transitions. [2021-11-12 22:56:05,012 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 3075 transitions. Word has length 187 [2021-11-12 22:56:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:05,012 INFO L470 AbstractCegarLoop]: Abstraction has 2288 states and 3075 transitions. [2021-11-12 22:56:05,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-12 22:56:05,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 3075 transitions. [2021-11-12 22:56:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-12 22:56:05,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:05,016 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:05,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:05,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:05,216 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1396826700, now seen corresponding path program 1 times [2021-11-12 22:56:05,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:05,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024655403] [2021-11-12 22:56:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:05,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:05,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:05,220 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:05,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-12 22:56:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:07,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 22:56:07,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-12 22:56:08,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-12 22:56:09,905 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:09,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024655403] [2021-11-12 22:56:09,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024655403] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:09,905 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:09,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-12 22:56:09,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152400219] [2021-11-12 22:56:09,906 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:09,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 22:56:09,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:09,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 22:56:09,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:56:09,907 INFO L87 Difference]: Start difference. First operand 2288 states and 3075 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 14 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-12 22:56:13,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:14,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:16,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:18,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:20,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:22,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:22,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:22,647 INFO L93 Difference]: Finished difference Result 4499 states and 6041 transitions. [2021-11-12 22:56:22,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:56:22,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 14 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 237 [2021-11-12 22:56:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:22,660 INFO L225 Difference]: With dead ends: 4499 [2021-11-12 22:56:22,660 INFO L226 Difference]: Without dead ends: 2303 [2021-11-12 22:56:22,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:56:22,670 INFO L933 BasicCegarLoop]: 1682 mSDtfsCounter, 29 mSDsluCounter, 20132 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11875.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 21814 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.76ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12064.67ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:22,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 21814 Invalid, 127 Unknown, 0 Unchecked, 23.76ms Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 3 Unknown, 0 Unchecked, 12064.67ms Time] [2021-11-12 22:56:22,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2021-11-12 22:56:23,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2297. [2021-11-12 22:56:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 1437 states have (on average 1.1809324982602645) internal successors, (1697), 1474 states have internal predecessors, (1697), 689 states have call successors, (689), 164 states have call predecessors, (689), 165 states have return successors, (699), 686 states have call predecessors, (699), 687 states have call successors, (699) [2021-11-12 22:56:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3085 transitions. [2021-11-12 22:56:23,065 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3085 transitions. Word has length 237 [2021-11-12 22:56:23,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:23,066 INFO L470 AbstractCegarLoop]: Abstraction has 2297 states and 3085 transitions. [2021-11-12 22:56:23,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 14 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-12 22:56:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3085 transitions. [2021-11-12 22:56:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-12 22:56:23,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:23,070 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:23,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:23,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:23,294 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2137490893, now seen corresponding path program 1 times [2021-11-12 22:56:23,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:23,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175821738] [2021-11-12 22:56:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:23,297 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:23,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:23,298 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:23,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-12 22:56:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:26,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:56:26,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-12 22:56:27,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:28,745 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-12 22:56:28,746 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:28,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175821738] [2021-11-12 22:56:28,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175821738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:28,746 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:28,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:56:28,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691172456] [2021-11-12 22:56:28,747 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:28,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:28,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:28,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:28,749 INFO L87 Difference]: Start difference. First operand 2297 states and 3085 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (66), 4 states have call predecessors, (66), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-12 22:56:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:29,593 INFO L93 Difference]: Finished difference Result 2325 states and 3109 transitions. [2021-11-12 22:56:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:56:29,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (66), 4 states have call predecessors, (66), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 258 [2021-11-12 22:56:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:29,605 INFO L225 Difference]: With dead ends: 2325 [2021-11-12 22:56:29,606 INFO L226 Difference]: Without dead ends: 2323 [2021-11-12 22:56:29,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 509 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 22:56:29,609 INFO L933 BasicCegarLoop]: 1689 mSDtfsCounter, 1497 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 6803 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.32ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:29,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1499 Valid, 6803 Invalid, 16 Unknown, 0 Unchecked, 16.54ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 45.32ms Time] [2021-11-12 22:56:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2021-11-12 22:56:30,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2321. [2021-11-12 22:56:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 1455 states have (on average 1.1800687285223368) internal successors, (1717), 1492 states have internal predecessors, (1717), 689 states have call successors, (689), 170 states have call predecessors, (689), 171 states have return successors, (699), 686 states have call predecessors, (699), 687 states have call successors, (699) [2021-11-12 22:56:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 3105 transitions. [2021-11-12 22:56:30,097 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 3105 transitions. Word has length 258 [2021-11-12 22:56:30,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:30,098 INFO L470 AbstractCegarLoop]: Abstraction has 2321 states and 3105 transitions. [2021-11-12 22:56:30,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (66), 4 states have call predecessors, (66), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-12 22:56:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 3105 transitions. [2021-11-12 22:56:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-12 22:56:30,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:30,103 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:30,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-11-12 22:56:30,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:30,319 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1191831274, now seen corresponding path program 1 times [2021-11-12 22:56:30,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:30,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532741255] [2021-11-12 22:56:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:30,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:30,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:30,323 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:30,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-12 22:56:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:32,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 22:56:32,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-12 22:56:34,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2021-11-12 22:56:36,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:36,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532741255] [2021-11-12 22:56:36,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532741255] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:36,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:36,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [18] total 33 [2021-11-12 22:56:36,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294651637] [2021-11-12 22:56:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:36,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 22:56:36,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:36,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 22:56:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=977, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:56:36,560 INFO L87 Difference]: Start difference. First operand 2321 states and 3105 transitions. Second operand has 18 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 8 states have call predecessors, (36), 7 states have call successors, (36) [2021-11-12 22:56:40,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:40,936 INFO L93 Difference]: Finished difference Result 4937 states and 6715 transitions. [2021-11-12 22:56:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:56:40,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 8 states have call predecessors, (36), 7 states have call successors, (36) Word has length 294 [2021-11-12 22:56:40,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:40,955 INFO L225 Difference]: With dead ends: 4937 [2021-11-12 22:56:40,956 INFO L226 Difference]: Without dead ends: 3128 [2021-11-12 22:56:40,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=205, Invalid=1601, Unknown=0, NotChecked=0, Total=1806 [2021-11-12 22:56:40,965 INFO L933 BasicCegarLoop]: 2322 mSDtfsCounter, 2770 mSDsluCounter, 33046 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2388.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 35368 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.23ms SdHoareTripleChecker+Time, 1323 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2708.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:40,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2774 Valid, 35368 Invalid, 2122 Unknown, 0 Unchecked, 51.23ms Time], IncrementalHoareTripleChecker [1323 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 2708.37ms Time] [2021-11-12 22:56:40,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2021-11-12 22:56:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 2325. [2021-11-12 22:56:41,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 1458 states have (on average 1.1796982167352539) internal successors, (1720), 1495 states have internal predecessors, (1720), 689 states have call successors, (689), 170 states have call predecessors, (689), 172 states have return successors, (700), 687 states have call predecessors, (700), 687 states have call successors, (700) [2021-11-12 22:56:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 3109 transitions. [2021-11-12 22:56:41,580 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 3109 transitions. Word has length 294 [2021-11-12 22:56:41,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:41,582 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 3109 transitions. [2021-11-12 22:56:41,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 8 states have call predecessors, (36), 7 states have call successors, (36) [2021-11-12 22:56:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 3109 transitions. [2021-11-12 22:56:41,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-12 22:56:41,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:41,586 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:41,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:41,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:41,804 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:41,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:41,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1939458682, now seen corresponding path program 1 times [2021-11-12 22:56:41,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:41,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402320034] [2021-11-12 22:56:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:41,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:41,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:41,809 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:41,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-12 22:56:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:44,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1717 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:56:44,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:45,166 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2021-11-12 22:56:45,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2021-11-12 22:56:45,808 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:45,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402320034] [2021-11-12 22:56:45,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402320034] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:45,808 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:45,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:56:45,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751879929] [2021-11-12 22:56:45,809 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:45,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:45,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:45,810 INFO L87 Difference]: Start difference. First operand 2325 states and 3109 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:56:47,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:48,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:48,522 INFO L93 Difference]: Finished difference Result 2327 states and 3110 transitions. [2021-11-12 22:56:48,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:56:48,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 283 [2021-11-12 22:56:48,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:48,531 INFO L225 Difference]: With dead ends: 2327 [2021-11-12 22:56:48,532 INFO L226 Difference]: Without dead ends: 2325 [2021-11-12 22:56:48,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:56:48,534 INFO L933 BasicCegarLoop]: 1687 mSDtfsCounter, 43 mSDsluCounter, 6698 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2201.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 8385 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2204.57ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:48,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 8385 Invalid, 16 Unknown, 0 Unchecked, 8.05ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2204.57ms Time] [2021-11-12 22:56:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2021-11-12 22:56:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2325. [2021-11-12 22:56:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 1458 states have (on average 1.1783264746227708) internal successors, (1718), 1495 states have internal predecessors, (1718), 689 states have call successors, (689), 170 states have call predecessors, (689), 172 states have return successors, (700), 687 states have call predecessors, (700), 687 states have call successors, (700) [2021-11-12 22:56:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 3107 transitions. [2021-11-12 22:56:49,214 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 3107 transitions. Word has length 283 [2021-11-12 22:56:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:49,215 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 3107 transitions. [2021-11-12 22:56:49,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 22:56:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 3107 transitions. [2021-11-12 22:56:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-11-12 22:56:49,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:49,220 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:49,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:49,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:49,446 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash -624357115, now seen corresponding path program 1 times [2021-11-12 22:56:49,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:49,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463106688] [2021-11-12 22:56:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:49,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:49,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:49,450 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:49,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-12 22:56:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:52,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:56:52,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2021-11-12 22:56:53,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2021-11-12 22:56:55,110 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:55,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463106688] [2021-11-12 22:56:55,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463106688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:55,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:55,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:56:55,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098215037] [2021-11-12 22:56:55,111 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:55,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:55,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:55,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:55,113 INFO L87 Difference]: Start difference. First operand 2325 states and 3107 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (75), 4 states have call predecessors, (75), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-11-12 22:56:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:55,774 INFO L93 Difference]: Finished difference Result 2761 states and 3541 transitions. [2021-11-12 22:56:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:56:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (75), 4 states have call predecessors, (75), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 337 [2021-11-12 22:56:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:55,791 INFO L225 Difference]: With dead ends: 2761 [2021-11-12 22:56:55,791 INFO L226 Difference]: Without dead ends: 2759 [2021-11-12 22:56:55,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 667 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 22:56:55,794 INFO L933 BasicCegarLoop]: 1789 mSDtfsCounter, 1378 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 5731 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.91ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:55,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 5731 Invalid, 22 Unknown, 0 Unchecked, 9.91ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 50.07ms Time] [2021-11-12 22:56:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2021-11-12 22:56:56,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2749. [2021-11-12 22:56:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 1734 states have (on average 1.1608996539792387) internal successors, (2013), 1771 states have internal predecessors, (2013), 753 states have call successors, (753), 254 states have call predecessors, (753), 256 states have return successors, (767), 751 states have call predecessors, (767), 751 states have call successors, (767) [2021-11-12 22:56:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3533 transitions. [2021-11-12 22:56:56,475 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3533 transitions. Word has length 337 [2021-11-12 22:56:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:56,476 INFO L470 AbstractCegarLoop]: Abstraction has 2749 states and 3533 transitions. [2021-11-12 22:56:56,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (75), 4 states have call predecessors, (75), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-11-12 22:56:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3533 transitions. [2021-11-12 22:56:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-12 22:56:56,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:56,481 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:56,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:56,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,706 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-12 22:56:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash 737347202, now seen corresponding path program 1 times [2021-11-12 22:56:56,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:56,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100015068] [2021-11-12 22:56:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:56,709 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:56,710 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:56,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abfcdc5-db9e-4ec3-b62d-691109ed893a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process